402055554 has 32 divisors (see below), whose sum is σ = 836075520. Its totient is φ = 128754000.

The previous prime is 402055519. The next prime is 402055583. The reversal of 402055554 is 455550204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18079 + ... + 33629.

It is an arithmetic number, because the mean of its divisors is an integer number (26127360).

Almost surely, 2^402055554 is an apocalyptic number.

402055554 is an abundant number, since it is smaller than the sum of its proper divisors (434019966).

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

402055554 is a wasteful number, since it uses less digits than its factorization.

402055554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15726.

The product of its (nonzero) digits is 20000, while the sum is 30.

The square root of 402055554 is about 20051.3229987450. The cubic root of 402055554 is about 738.0662648617.

The spelling of 402055554 in words is "four hundred two million, fifty-five thousand, five hundred fifty-four".