400858941 has 16 divisors (see below), whose sum is σ = 642982400. Its totient is φ = 217006128.

The previous prime is 400858919. The next prime is 400858961. The reversal of 400858941 is 149858004.

It is not a de Polignac number, because 400858941 - 2⁷ = 400858813 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 400858941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400858961) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 501931 + ... + 502728.

It is an arithmetic number, because the mean of its divisors is an integer number (40186400).

Almost surely, 2^400858941 is an apocalyptic number.

It is an amenable number.

400858941 is a deficient number, since it is larger than the sum of its proper divisors (242123459).

400858941 is a wasteful number, since it uses less digits than its factorization.

400858941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004688.

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 400858941 is about 20021.4620095536. The cubic root of 400858941 is about 737.3333169605. Note that the first 4 decimals are identical.

The spelling of 400858941 in words is "four hundred million, eight hundred fifty-eight thousand, nine hundred forty-one".