520242142 has 16 divisors (see below), whose sum is σ = 897832800. Its totient is φ = 221463648.

The previous prime is 520242101. The next prime is 520242161. The reversal of 520242142 is 241242025.

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, 122613 + ... + 126784.

It is an arithmetic number, because the mean of its divisors is an integer number (56114550).

Almost surely, 2^520242142 is an apocalyptic number.

520242142 is a deficient number, since it is larger than the sum of its proper divisors (377590658).

520242142 is a wasteful number, since it uses less digits than its factorization.

520242142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249555.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 520242142 is about 22808.8171986186. The cubic root of 520242142 is about 804.2699511404.

Adding to 520242142 its reverse (241242025), we get a palindrome (761484167).

The spelling of 520242142 in words is "five hundred twenty million, two hundred forty-two thousand, one hundred forty-two".