520974216 has 48 divisors (see below), whose sum is σ = 1612540800. Its totient is φ = 148849632.

The previous prime is 520974191. The next prime is 520974229. The reversal of 520974216 is 612479025.

520974216 is a `hidden beast` number, since 520 + 97 + 42 + 1 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 516336 + ... + 517343.

It is an arithmetic number, because the mean of its divisors is an integer number (33594600).

Almost surely, 2^520974216 is an apocalyptic number.

520974216 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

520974216 is an abundant number, since it is smaller than the sum of its proper divisors (1091566584).

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

520974216 is a wasteful number, since it uses less digits than its factorization.

520974216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033698 (or 1033691 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 520974216 is about 22824.8596052637. The cubic root of 520974216 is about 804.6470250149.

The spelling of 520974216 in words is "five hundred twenty million, nine hundred seventy-four thousand, two hundred sixteen".