402844446 has 24 divisors (see below), whose sum is σ = 878693400. Its totient is φ = 133379376.

The previous prime is 402844439. The next prime is 402844451. The reversal of 402844446 is 644448204.

It is a self number, because there is not a number n which added to its sum of digits gives 402844446.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72420 + ... + 77783.

It is an arithmetic number, because the mean of its divisors is an integer number (36612225).

Almost surely, 2^402844446 is an apocalyptic number.

402844446 is an abundant number, since it is smaller than the sum of its proper divisors (475848954).

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

402844446 is a wasteful number, since it uses less digits than its factorization.

402844446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150360 (or 150357 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 36.

The square root of 402844446 is about 20070.9851776140. The cubic root of 402844446 is about 738.5486809172.

The spelling of 402844446 in words is "four hundred two million, eight hundred forty-four thousand, four hundred forty-six".