618800652 has 36 divisors (see below), whose sum is σ = 1593708480. Its totient is φ = 202374432.

The previous prime is 618800647. The next prime is 618800657. The reversal of 618800652 is 256008816.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (618800647) and next prime (618800657).

It is a tau number, because it is divible by the number of its divisors (36).

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 (618800657) 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 11 ways as a sum of consecutive naturals, for example, 160252 + ... + 164067.

It is an arithmetic number, because the mean of its divisors is an integer number (44269680).

Almost surely, 2^618800652 is an apocalyptic number.

It is an amenable number.

618800652 is an abundant number, since it is smaller than the sum of its proper divisors (974907828).

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

618800652 is a wasteful number, since it uses less digits than its factorization.

618800652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324382 (or 324377 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 618800652 is about 24875.7040503380. The cubic root of 618800652 is about 852.1517120566.

The spelling of 618800652 in words is "six hundred eighteen million, eight hundred thousand, six hundred fifty-two".