402193944 has 32 divisors (see below), whose sum is σ = 1117206000. Its totient is φ = 134064576.

The previous prime is 402193933. The next prime is 402193999. The reversal of 402193944 is 449391204.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 402193899 and 402193908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 930789 + ... + 931220.

Almost surely, 2^402193944 is an apocalyptic number.

It is an amenable number.

402193944 is an abundant number, since it is smaller than the sum of its proper divisors (715012056).

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

402193944 is a wasteful number, since it uses less digits than its factorization.

402193944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1862024 (or 1862014 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 402193944 is about 20054.7735963286. The cubic root of 402193944 is about 738.1509374668.

The spelling of 402193944 in words is "four hundred two million, one hundred ninety-three thousand, nine hundred forty-four".