523507442 has 16 divisors (see below), whose sum is σ = 795355200. Its totient is φ = 258404400.

The previous prime is 523507421. The next prime is 523507459. The reversal of 523507442 is 244705325.

It is a junction number, because it is equal to n+sod(n) for n = 523507399 and 523507408.

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, 68909 + ... + 76127.

It is an arithmetic number, because the mean of its divisors is an integer number (49709700).

Almost surely, 2^523507442 is an apocalyptic number.

523507442 is a deficient number, since it is larger than the sum of its proper divisors (271847758).

523507442 is a wasteful number, since it uses less digits than its factorization.

523507442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7681.

The product of its (nonzero) digits is 33600, while the sum is 32.

The square root of 523507442 is about 22880.2850069662. The cubic root of 523507442 is about 805.9491098287.

The spelling of 523507442 in words is "five hundred twenty-three million, five hundred seven thousand, four hundred forty-two".