400195004 has 24 divisors (see below), whose sum is σ = 764972208. Its totient is φ = 181677440.

The previous prime is 400195001. The next prime is 400195073. The reversal of 400195004 is 400591004.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400195001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32402 + ... + 43014.

It is an arithmetic number, because the mean of its divisors is an integer number (31873842).

Almost surely, 2^400195004 is an apocalyptic number.

400195004 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

400195004 is a deficient number, since it is larger than the sum of its proper divisors (364777204).

400195004 is a wasteful number, since it uses less digits than its factorization.

400195004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11485 (or 11483 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 400195004 is about 20004.8745059798. The cubic root of 400195004 is about 736.9260137560.

The spelling of 400195004 in words is "four hundred million, one hundred ninety-five thousand, four".