401361856 has 56 divisors (see below), whose sum is σ = 941649120. Its totient is φ = 166075392.

The previous prime is 401361853. The next prime is 401361859. The reversal of 401361856 is 658163104.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (401361853) and next prime (401361859).

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×401361856² = 322182678903529472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401361853) 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, 2455 + ... + 28438.

Almost surely, 2^401361856 is an apocalyptic number.

It is an amenable number.

401361856 is an abundant number, since it is smaller than the sum of its proper divisors (540287264).

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

401361856 is a wasteful number, since it uses less digits than its factorization.

401361856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30941 (or 30931 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 401361856 is about 20034.0174702929. The cubic root of 401361856 is about 737.6415392808.

The spelling of 401361856 in words is "four hundred one million, three hundred sixty-one thousand, eight hundred fifty-six".