401623332 has 48 divisors (see below), whose sum is σ = 1066770432. Its totient is φ = 116411680.

The previous prime is 401623301. The next prime is 401623333. The reversal of 401623332 is 233326104.

It is a super-2 number, since 2×401623332² = 322602601613564448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401623333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63108 + ... + 69179.

It is an arithmetic number, because the mean of its divisors is an integer number (22224384).

Almost surely, 2^401623332 is an apocalyptic number.

It is an amenable number.

401623332 is an abundant number, since it is smaller than the sum of its proper divisors (665147100).

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

401623332 is a wasteful number, since it uses less digits than its factorization.

401623332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132328 (or 132326 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 401623332 is about 20040.5422082338. The cubic root of 401623332 is about 737.8016887711.

Adding to 401623332 its reverse (233326104), we get a palindrome (634949436).

The spelling of 401623332 in words is "four hundred one million, six hundred twenty-three thousand, three hundred thirty-two".