402256044 has 60 divisors (see below), whose sum is σ = 1060979304. Its totient is φ = 132886656.

The previous prime is 402256037. The next prime is 402256051. The reversal of 402256044 is 440652204.

402256044 is a `hidden beast` number, since 40 + 22 + 560 + 44 = 666.

It is an interprime number because it is at equal distance from previous prime (402256037) and next prime (402256051).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 402255999 and 402256017.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 31119 + ... + 42105.

Almost surely, 2^402256044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402256044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (530489652).

402256044 is an abundant number, since it is smaller than the sum of its proper divisors (658723260).

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

402256044 is a wasteful number, since it uses less digits than its factorization.

402256044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11116 (or 11105 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 402256044 is about 20056.3217963813. The cubic root of 402256044 is about 738.1889264477.

The spelling of 402256044 in words is "four hundred two million, two hundred fifty-six thousand, forty-four".