515468772 has 120 divisors (see below), whose sum is σ = 1658602176. Its totient is φ = 135940032.

The previous prime is 515468741. The next prime is 515468783. The reversal of 515468772 is 277864515.

515468772 is a `hidden beast` number, since 515 + 4 + 68 + 7 + 72 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 20743 + ... + 38225.

Almost surely, 2^515468772 is an apocalyptic number.

515468772 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 515468772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (829301088).

515468772 is an abundant number, since it is smaller than the sum of its proper divisors (1143133404).

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

515468772 is a wasteful number, since it uses less digits than its factorization.

515468772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17519 (or 17508 counting only the distinct ones).

The product of its digits is 470400, while the sum is 45.

The square root of 515468772 is about 22703.9373677783. The cubic root of 515468772 is about 801.8025873811.

The spelling of 515468772 in words is "five hundred fifteen million, four hundred sixty-eight thousand, seven hundred seventy-two".