520140534 has 32 divisors (see below), whose sum is σ = 1119544416. Its totient is φ = 160504320.

The previous prime is 520140521. The next prime is 520140541. The reversal of 520140534 is 435041025.

It is a super-3 number, since 3×520140534³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35577 + ... + 48020.

It is an arithmetic number, because the mean of its divisors is an integer number (34985763).

Almost surely, 2^520140534 is an apocalyptic number.

520140534 is an abundant number, since it is smaller than the sum of its proper divisors (599403882).

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

520140534 is a wasteful number, since it uses less digits than its factorization.

520140534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83680.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 520140534 is about 22806.5897056092. The cubic root of 520140534 is about 804.2175873304.

Adding to 520140534 its reverse (435041025), we get a palindrome (955181559).

The spelling of 520140534 in words is "five hundred twenty million, one hundred forty thousand, five hundred thirty-four".