520274838 has 8 divisors (see below), whose sum is σ = 1040549688. Its totient is φ = 173424944.

The previous prime is 520274827. The next prime is 520274857. The reversal of 520274838 is 838472025.

It is a sphenic number, since it is the product of 3 distinct primes.

520274838 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 520274796 and 520274805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43356231 + ... + 43356242.

It is an arithmetic number, because the mean of its divisors is an integer number (130068711).

Almost surely, 2^520274838 is an apocalyptic number.

520274838 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

520274838 is a wasteful number, since it uses less digits than its factorization.

520274838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86712478.

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 520274838 is about 22809.5339277242. The cubic root of 520274838 is about 804.2867996150.

It can be divided in two parts, 52027 and 4838, that added together give a palindrome (56865).

The spelling of 520274838 in words is "five hundred twenty million, two hundred seventy-four thousand, eight hundred thirty-eight".