401530832 has 10 divisors (see below), whose sum is σ = 777966018. Its totient is φ = 200765408.

The previous prime is 401530807. The next prime is 401530847. The reversal of 401530832 is 238035104.

It can be written as a sum of positive squares in only one way, i.e., 223681936 + 177848896 = 14956^2 + 13336^2 .

It is a super-2 number, since 2×401530832² = 322454018093224448, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12547823 + ... + 12547854.

Almost surely, 2^401530832 is an apocalyptic number.

It is an amenable number.

401530832 is a deficient number, since it is larger than the sum of its proper divisors (376435186).

401530832 is a wasteful number, since it uses less digits than its factorization.

401530832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25095685 (or 25095679 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 401530832 is about 20038.2342535464. The cubic root of 401530832 is about 737.7450420818.

Adding to 401530832 its reverse (238035104), we get a palindrome (639565936).

The spelling of 401530832 in words is "four hundred one million, five hundred thirty thousand, eight hundred thirty-two".