402652044 has 72 divisors (see below), whose sum is σ = 1044262128. Its totient is φ = 130775040.

The previous prime is 402651989. The next prime is 402652069. The reversal of 402652044 is 440256204.

402652044 is a `hidden beast` number, since 4 + 0 + 2 + 652 + 0 + 4 + 4 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 402651999 and 402652017.

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, 233104 + ... + 234824.

Almost surely, 2^402652044 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 402652044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (522131064).

402652044 is an abundant number, since it is smaller than the sum of its proper divisors (641610084).

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

402652044 is a wasteful number, since it uses less digits than its factorization.

402652044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1895 (or 1890 counting only the distinct ones).

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

The square root of 402652044 is about 20066.1915669117. The cubic root of 402652044 is about 738.4310831090.

The spelling of 402652044 in words is "four hundred two million, six hundred fifty-two thousand, forty-four".