520774420 has 24 divisors (see below), whose sum is σ = 1151186400. Its totient is φ = 197345952.

The previous prime is 520774403. The next prime is 520774517. The reversal of 520774420 is 24477025.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 684850 + ... + 685609.

It is an arithmetic number, because the mean of its divisors is an integer number (47966100).

Almost surely, 2^520774420 is an apocalyptic number.

It is an amenable number.

520774420 is an abundant number, since it is smaller than the sum of its proper divisors (630411980).

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

520774420 is a wasteful number, since it uses less digits than its factorization.

520774420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370487 (or 1370485 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 520774420 is about 22820.4824664160. The cubic root of 520774420 is about 804.5441499219.

The spelling of 520774420 in words is "five hundred twenty million, seven hundred seventy-four thousand, four hundred twenty".