402420134504 has 16 divisors (see below), whose sum is σ = 758753049600. Its totient is φ = 200085987952.

The previous prime is 402420134483. The next prime is 402420134609. The reversal of 402420134504 is 405431024204.

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, 140508392 + ... + 140511255.

It is an arithmetic number, because the mean of its divisors is an integer number (47422065600).

Almost surely, 2^402420134504 is an apocalyptic number.

It is an amenable number.

402420134504 is a deficient number, since it is larger than the sum of its proper divisors (356332915096).

402420134504 is a wasteful number, since it uses less digits than its factorization.

402420134504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281019832 (or 281019828 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 402420134504 its reverse (405431024204), we get a palindrome (807851158708).

The spelling of 402420134504 in words is "four hundred two billion, four hundred twenty million, one hundred thirty-four thousand, five hundred four".