401237632 has 32 divisors (see below), whose sum is σ = 808344900. Its totient is φ = 198359040.

The previous prime is 401237609. The next prime is 401237647. The reversal of 401237632 is 236732104.

It can be written as a sum of positive squares in 2 ways, for example, as 397763136 + 3474496 = 19944^2 + 1864^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 401237632.

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, 6219 + ... + 29002.

Almost surely, 2^401237632 is an apocalyptic number.

It is an amenable number.

401237632 is an abundant number, since it is smaller than the sum of its proper divisors (407107268).

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

401237632 is an equidigital number, since it uses as much as digits as its factorization.

401237632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35324 (or 35312 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 401237632 is about 20030.9169036268. The cubic root of 401237632 is about 737.5654298744.

Adding to 401237632 its reverse (236732104), we get a palindrome (637969736).

The spelling of 401237632 in words is "four hundred one million, two hundred thirty-seven thousand, six hundred thirty-two".