400075455 has 32 divisors (see below), whose sum is σ = 719341056. Its totient is φ = 188394624.

The previous prime is 400075439. The next prime is 400075463. The reversal of 400075455 is 554570004.

It is not a de Polignac number, because 400075455 - 2⁴ = 400075439 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 40117 + ... + 49086.

It is an arithmetic number, because the mean of its divisors is an integer number (22479408).

Almost surely, 2^400075455 is an apocalyptic number.

400075455 is a deficient number, since it is larger than the sum of its proper divisors (319265601).

400075455 is a wasteful number, since it uses less digits than its factorization.

400075455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89247.

The product of its (nonzero) digits is 14000, while the sum is 30.

The square root of 400075455 is about 20001.8862860481. The cubic root of 400075455 is about 736.8526265813.

The spelling of 400075455 in words is "four hundred million, seventy-five thousand, four hundred fifty-five".