400880884 has 12 divisors (see below), whose sum is σ = 701708644. Its totient is φ = 200392704.

The previous prime is 400880849. The next prime is 400880897. The reversal of 400880884 is 488088004.

It can be written as a sum of positive squares in 2 ways, for example, as 225900900 + 174979984 = 15030^2 + 13228^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12532 + ... + 30964.

Almost surely, 2^400880884 is an apocalyptic number.

It is an amenable number.

400880884 is a deficient number, since it is larger than the sum of its proper divisors (300827760).

400880884 is a wasteful number, since it uses less digits than its factorization.

400880884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23874 (or 23872 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 40.

The square root of 400880884 is about 20022.0099890096. The cubic root of 400880884 is about 737.3467705790.

The spelling of 400880884 in words is "four hundred million, eight hundred eighty thousand, eight hundred eighty-four".