616235652 has 72 divisors (see below), whose sum is σ = 1655120376. Its totient is φ = 192651264.

The previous prime is 616235647. The next prime is 616235657. The reversal of 616235652 is 256532616.

It is a happy number.

616235652 is a `hidden beast` number, since 616 + 2 + 35 + 6 + 5 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (616235647) and next prime (616235657).

It can be written as a sum of positive squares in 4 ways, for example, as 102941316 + 513294336 = 10146^2 + 22656^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (616235657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 189948 + ... + 193164.

It is an arithmetic number, because the mean of its divisors is an integer number (22987783).

Almost surely, 2^616235652 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 616235652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (827560188).

616235652 is an abundant number, since it is smaller than the sum of its proper divisors (1038884724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

616235652 is a wasteful number, since it uses less digits than its factorization.

616235652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3557 (or 3552 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 616235652 is about 24824.0941828700. The cubic root of 616235652 is about 850.9726591060.

It can be divided in two parts, 6162 and 35652, that added together give a palindrome (41814).

The spelling of 616235652 in words is "six hundred sixteen million, two hundred thirty-five thousand, six hundred fifty-two".