520249734 has 24 divisors (see below), whose sum is σ = 1166078160. Its totient is φ = 167436528.

The previous prime is 520249699. The next prime is 520249739. The reversal of 520249734 is 437942025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520249739) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 497802 + ... + 498845.

It is an arithmetic number, because the mean of its divisors is an integer number (48586590).

Almost surely, 2^520249734 is an apocalyptic number.

520249734 is an abundant number, since it is smaller than the sum of its proper divisors (645828426).

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

520249734 is a wasteful number, since it uses less digits than its factorization.

520249734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996684 (or 996681 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 520249734 is about 22808.9836248790. The cubic root of 520249734 is about 804.2738634134.

The spelling of 520249734 in words is "five hundred twenty million, two hundred forty-nine thousand, seven hundred thirty-four".