401532032 has 32 divisors (see below), whose sum is σ = 872650800. Its totient is φ = 182513920.

The previous prime is 401532031. The next prime is 401532037. The reversal of 401532032 is 230235104.

It is a happy number.

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

It is a super-2 number, since 2×401532032² = 322455945444098048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401531995 and 401532013.

It is not an unprimeable number, because it can be changed into a prime (401532031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141182 + ... + 143997.

Almost surely, 2^401532032 is an apocalyptic number.

It is an amenable number.

401532032 is an abundant number, since it is smaller than the sum of its proper divisors (471118768).

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

401532032 is a wasteful number, since it uses less digits than its factorization.

401532032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285204 (or 285192 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 401532032 is about 20038.2641962821. The cubic root of 401532032 is about 737.7457770134.

Adding to 401532032 its reverse (230235104), we get a palindrome (631767136).

The spelling of 401532032 in words is "four hundred one million, five hundred thirty-two thousand, thirty-two".