520638414 has 16 divisors (see below), whose sum is σ = 1043113680. Its totient is φ = 173240000.

The previous prime is 520638343. The next prime is 520638427. The reversal of 520638414 is 414836025.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72837 + ... + 79664.

It is an arithmetic number, because the mean of its divisors is an integer number (65194605).

Almost surely, 2^520638414 is an apocalyptic number.

520638414 is an abundant number, since it is smaller than the sum of its proper divisors (522475266).

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

520638414 is a wasteful number, since it uses less digits than its factorization.

520638414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153075.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 520638414 is about 22817.5023611262. The cubic root of 520638414 is about 804.4741052893.

The spelling of 520638414 in words is "five hundred twenty million, six hundred thirty-eight thousand, four hundred fourteen".