400078935790 has 16 divisors (see below), whose sum is σ = 720149593968. Its totient is φ = 160029905536.

The previous prime is 400078935769. The next prime is 400078935827. The reversal of 400078935790 is 97539870004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1360029 + ... + 1627831.

It is an arithmetic number, because the mean of its divisors is an integer number (45009349623).

Almost surely, 2^400078935790 is an apocalyptic number.

400078935790 is a deficient number, since it is larger than the sum of its proper divisors (320070658178).

400078935790 is a wasteful number, since it uses less digits than its factorization.

400078935790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417203.

The product of its (nonzero) digits is 1905120, while the sum is 52.

The spelling of 400078935790 in words is "four hundred billion, seventy-eight million, nine hundred thirty-five thousand, seven hundred ninety".