401504232 has 96 divisors (see below), whose sum is σ = 1078233120. Its totient is φ = 124554240.

The previous prime is 401504231. The next prime is 401504291. The reversal of 401504232 is 232405104.

It is a super-2 number, since 2×401504232² = 322411296627819648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401504199 and 401504208.

It is not an unprimeable number, because it can be changed into a prime (401504231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 741882 + ... + 742422.

It is an arithmetic number, because the mean of its divisors is an integer number (11231595).

Almost surely, 2^401504232 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 401504232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (539116560).

401504232 is an abundant number, since it is smaller than the sum of its proper divisors (676728888).

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

401504232 is a wasteful number, since it uses less digits than its factorization.

401504232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691 (or 670 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 401504232 is about 20037.5705114168. The cubic root of 401504232 is about 737.7287507205.

Adding to 401504232 its reverse (232405104), we get a palindrome (633909336).

The spelling of 401504232 in words is "four hundred one million, five hundred four thousand, two hundred thirty-two".