615252672 has 98 divisors (see below), whose sum is σ = 1830639468. Its totient is φ = 205068672.

The previous prime is 615252653. The next prime is 615252679. The reversal of 615252672 is 276252516.

615252672 is a `hidden beast` number, since 61 + 5 + 2 + 526 + 72 = 666.

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 (615252679) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 40063 + ... + 53249.

Almost surely, 2^615252672 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 615252672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (915319734).

615252672 is an abundant number, since it is smaller than the sum of its proper divisors (1215386796).

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

615252672 is an equidigital number, since it uses as much as digits as its factorization.

615252672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13217 (or 13192 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 615252672 is about 24804.2873713397. The cubic root of 615252672 is about 850.5199457823.

The spelling of 615252672 in words is "six hundred fifteen million, two hundred fifty-two thousand, six hundred seventy-two".