402441156 has 192 divisors, whose sum is σ = 1182146560. Its totient is φ = 117573120.

The previous prime is 402441139. The next prime is 402441161. The reversal of 402441156 is 651144204.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3168765 + ... + 3168891.

Almost surely, 2^402441156 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 402441156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (591073280).

402441156 is an abundant number, since it is smaller than the sum of its proper divisors (779705404).

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

402441156 is a wasteful number, since it uses less digits than its factorization.

402441156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 402441156 is about 20060.9360698847. The cubic root of 402441156 is about 738.3021434520.

The spelling of 402441156 in words is "four hundred two million, four hundred forty-one thousand, one hundred fifty-six".