400070044 has 36 divisors (see below), whose sum is σ = 814840992. Its totient is φ = 171149440.

The previous prime is 400070039. The next prime is 400070057. The reversal of 400070044 is 440070004.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16084 + ... + 32539.

It is an arithmetic number, because the mean of its divisors is an integer number (22634472).

Almost surely, 2^400070044 is an apocalyptic number.

400070044 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

400070044 is an abundant number, since it is smaller than the sum of its proper divisors (414770948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400070044 is a wasteful number, since it uses less digits than its factorization.

400070044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48666 (or 48653 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 400070044 is about 20001.7510233479. The cubic root of 400070044 is about 736.8493046017.

The spelling of 400070044 in words is "four hundred million, seventy thousand, forty-four".