520408314 has 28 divisors (see below), whose sum is σ = 1170386586. Its totient is φ = 173468952.

The previous prime is 520408297. The next prime is 520408331. The reversal of 520408314 is 413804025.

It is an interprime number because it is at equal distance from previous prime (520408297) and next prime (520408331).

It can be written as a sum of positive squares in only one way, i.e., 508277025 + 12131289 = 22545^2 + 3483^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 177009 + ... + 179924.

Almost surely, 2^520408314 is an apocalyptic number.

520408314 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

520408314 is an abundant number, since it is smaller than the sum of its proper divisors (649978272).

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

520408314 is an equidigital number, since it uses as much as digits as its factorization.

520408314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356953 (or 356938 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 520408314 is about 22812.4596218821. The cubic root of 520408314 is about 804.3555733975.

The spelling of 520408314 in words is "five hundred twenty million, four hundred eight thousand, three hundred fourteen".