616769244 has 144 divisors (see below), whose sum is σ = 1951971840. Its totient is φ = 159857280.

The previous prime is 616769239. The next prime is 616769249. The reversal of 616769244 is 442967616.

616769244 is a `hidden beast` number, since 616 + 7 + 6 + 9 + 24 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (616769239) and next prime (616769249).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 616769244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616769249) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 191689 + ... + 194879.

It is an arithmetic number, because the mean of its divisors is an integer number (13555360).

Almost surely, 2^616769244 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 616769244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (975985920).

616769244 is an abundant number, since it is smaller than the sum of its proper divisors (1335202596).

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

616769244 is a wasteful number, since it uses less digits than its factorization.

616769244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3280 (or 3275 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 616769244 is about 24834.8393189890. The cubic root of 616769244 is about 851.2182043536.

The spelling of 616769244 in words is "six hundred sixteen million, seven hundred sixty-nine thousand, two hundred forty-four".