520456942 has 4 divisors (see below), whose sum is σ = 780685416. Its totient is φ = 260228470.

The previous prime is 520456927. The next prime is 520456943. The reversal of 520456942 is 249654025.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520456943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130114234 + ... + 130114237.

It is an arithmetic number, because the mean of its divisors is an integer number (195171354).

Almost surely, 2^520456942 is an apocalyptic number.

520456942 is a deficient number, since it is larger than the sum of its proper divisors (260228474).

520456942 is a wasteful number, since it uses less digits than its factorization.

520456942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260228473.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 520456942 is about 22813.5254180497. The cubic root of 520456942 is about 804.3806261516.

The spelling of 520456942 in words is "five hundred twenty million, four hundred fifty-six thousand, nine hundred forty-two".