400804825238 has 12 divisors (see below), whose sum is σ = 632855886180. Its totient is φ = 189853068600.

The previous prime is 400804825207. The next prime is 400804825261. The reversal of 400804825238 is 832528408004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3851288 + ... + 3953988.

It is an arithmetic number, because the mean of its divisors is an integer number (52737990515).

Almost surely, 2^400804825238 is an apocalyptic number.

400804825238 is a deficient number, since it is larger than the sum of its proper divisors (232051060942).

400804825238 is an frugal number, since it uses more digits than its factorization.

400804825238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205423 (or 102722 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 44.

The spelling of 400804825238 in words is "four hundred billion, eight hundred four million, eight hundred twenty-five thousand, two hundred thirty-eight".