401343232 has 72 divisors (see below), whose sum is σ = 852143600. Its totient is φ = 188116992.

The previous prime is 401343203. The next prime is 401343233. The reversal of 401343232 is 232343104.

It is a happy number.

It is a super-2 number, since 2×401343232² = 322152779744411648, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401343233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 529798 + ... + 530554.

Almost surely, 2^401343232 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 401343232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (426071800).

401343232 is an abundant number, since it is smaller than the sum of its proper divisors (450800368).

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

401343232 is a wasteful number, since it uses less digits than its factorization.

401343232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901 (or 887 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 401343232 is about 20033.5526554828. The cubic root of 401343232 is about 737.6301297524.

Adding to 401343232 its reverse (232343104), we get a palindrome (633686336).

The spelling of 401343232 in words is "four hundred one million, three hundred forty-three thousand, two hundred thirty-two".