401140632 has 16 divisors (see below), whose sum is σ = 1002851640. Its totient is φ = 133713536.

The previous prime is 401140627. The next prime is 401140661. The reversal of 401140632 is 236041104.

It is a junction number, because it is equal to n+sod(n) for n = 401140599 and 401140608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8357073 + ... + 8357120.

Almost surely, 2^401140632 is an apocalyptic number.

It is an amenable number.

401140632 is an abundant number, since it is smaller than the sum of its proper divisors (601711008).

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

401140632 is a wasteful number, since it uses less digits than its factorization.

401140632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16714202 (or 16714198 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 401140632 is about 20028.4955001618. The cubic root of 401140632 is about 737.5059891116.

Adding to 401140632 its reverse (236041104), we get a palindrome (637181736).

The spelling of 401140632 in words is "four hundred one million, one hundred forty thousand, six hundred thirty-two".