512423404 has 12 divisors (see below), whose sum is σ = 896900704. Its totient is φ = 256166064.

The previous prime is 512423393. The next prime is 512423413. The reversal of 512423404 is 404324215.

It is a happy 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, 33442 + ... + 46294.

Almost surely, 2^512423404 is an apocalyptic number.

It is an amenable number.

512423404 is a deficient number, since it is larger than the sum of its proper divisors (384477300).

512423404 is a wasteful number, since it uses less digits than its factorization.

512423404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22824 (or 22822 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 512423404 is about 22636.7710594952. The cubic root of 512423404 is about 800.2204621566.

Adding to 512423404 its reverse (404324215), we get a palindrome (916747619).

The spelling of 512423404 in words is "five hundred twelve million, four hundred twenty-three thousand, four hundred four".