400911552 has 112 divisors (see below), whose sum is σ = 1240739200. Its totient is φ = 126593280.

The previous prime is 400911523. The next prime is 400911583. The reversal of 400911552 is 255119004.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 26727 + ... + 38937.

Almost surely, 2^400911552 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 400911552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (620369600).

400911552 is an abundant number, since it is smaller than the sum of its proper divisors (839827648).

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

400911552 is a wasteful number, since it uses less digits than its factorization.

400911552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12251 (or 12235 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 400911552 is about 20022.7758315374. The cubic root of 400911552 is about 737.3655728177.

The spelling of 400911552 in words is "four hundred million, nine hundred eleven thousand, five hundred fifty-two".