520973392 has 40 divisors (see below), whose sum is σ = 1024280424. Its totient is φ = 256671744.

The previous prime is 520973359. The next prime is 520973393. The reversal of 520973392 is 293379025.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10394176 + 510579216 = 3224^2 + 22596^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520973393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348198 + ... + 349690.

Almost surely, 2^520973392 is an apocalyptic number.

It is an amenable number.

520973392 is a deficient number, since it is larger than the sum of its proper divisors (503307032).

520973392 is a wasteful number, since it uses less digits than its factorization.

520973392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1807 (or 1801 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 40.

The square root of 520973392 is about 22824.8415547622. The cubic root of 520973392 is about 804.6466007908.

The spelling of 520973392 in words is "five hundred twenty million, nine hundred seventy-three thousand, three hundred ninety-two".