402885244944 has 720 divisors, whose sum is σ = 1535006753280. Its totient is φ = 97402798080.

The previous prime is 402885244939. The next prime is 402885244961. The reversal of 402885244944 is 449442588204.

402885244944 is a `hidden beast` number, since 4 + 0 + 28 + 8 + 524 + 4 + 94 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 54024064 + ... + 54031520.

It is an arithmetic number, because the mean of its divisors is an integer number (2131953824).

Almost surely, 2^402885244944 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 402885244944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (767503376640).

402885244944 is an abundant number, since it is smaller than the sum of its proper divisors (1132121508336).

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

402885244944 is a wasteful number, since it uses less digits than its factorization.

402885244944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7548 (or 7532 counting only the distinct ones).

The product of its (nonzero) digits is 11796480, while the sum is 54.

The spelling of 402885244944 in words is "four hundred two billion, eight hundred eighty-five million, two hundred forty-four thousand, nine hundred forty-four".