520742132 has 12 divisors (see below), whose sum is σ = 914231136. Its totient is φ = 259533240.

The previous prime is 520742129. The next prime is 520742141. The reversal of 520742132 is 231247025.

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, 208058 + ... + 210545.

It is an arithmetic number, because the mean of its divisors is an integer number (76185928).

Almost surely, 2^520742132 is an apocalyptic number.

It is an amenable number.

520742132 is a deficient number, since it is larger than the sum of its proper divisors (393489004).

520742132 is a wasteful number, since it uses less digits than its factorization.

520742132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418918 (or 418916 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 520742132 is about 22819.7750208016. The cubic root of 520742132 is about 804.5275223397.

Adding to 520742132 its reverse (231247025), we get a palindrome (751989157).

The spelling of 520742132 in words is "five hundred twenty million, seven hundred forty-two thousand, one hundred thirty-two".