615120460 has 12 divisors (see below), whose sum is σ = 1291753008. Its totient is φ = 246048176.

The previous prime is 615120437. The next prime is 615120481. The reversal of 615120460 is 64021516.

It is a super-2 number, since 2×615120460² = 756746360621223200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15377992 + ... + 15378031.

It is an arithmetic number, because the mean of its divisors is an integer number (107646084).

Almost surely, 2^615120460 is an apocalyptic number.

It is an amenable number.

615120460 is an abundant number, since it is smaller than the sum of its proper divisors (676632548).

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

615120460 is a wasteful number, since it uses less digits than its factorization.

615120460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30756032 (or 30756030 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 615120460 is about 24801.6221243692. The cubic root of 615120460 is about 850.4590185114.

Adding to 615120460 its reverse (64021516), we get a palindrome (679141976).

The spelling of 615120460 in words is "six hundred fifteen million, one hundred twenty thousand, four hundred sixty".