402256854 has 48 divisors (see below), whose sum is σ = 935035920. Its totient is φ = 129457440.

The previous prime is 402256849. The next prime is 402256871. The reversal of 402256854 is 458652204.

It is a happy number.

402256854 is a `hidden beast` number, since 40 + 2 + 2 + 568 + 54 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 177 + ... + 28364.

It is an arithmetic number, because the mean of its divisors is an integer number (19479915).

Almost surely, 2^402256854 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402256854, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (467517960).

402256854 is an abundant number, since it is smaller than the sum of its proper divisors (532779066).

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

402256854 is a wasteful number, since it uses less digits than its factorization.

402256854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28587 (or 28575 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The square root of 402256854 is about 20056.3419895055. The cubic root of 402256854 is about 738.1894219303.

The spelling of 402256854 in words is "four hundred two million, two hundred fifty-six thousand, eight hundred fifty-four".