401553400332 has 24 divisors (see below), whose sum is σ = 1070809067776. Its totient is φ = 114729542928.

The previous prime is 401553400331. The next prime is 401553400337. The reversal of 401553400332 is 233004355104.

401553400332 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×401553400332² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401553400332.

It is not an unprimeable number, because it can be changed into a prime (401553400331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2390198728 + ... + 2390198895.

Almost surely, 2^401553400332 is an apocalyptic number.

401553400332 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

401553400332 is an abundant number, since it is smaller than the sum of its proper divisors (669255667444).

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

401553400332 is a wasteful number, since it uses less digits than its factorization.

401553400332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4780397637 (or 4780397635 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 401553400332 its reverse (233004355104), we get a palindrome (634557755436).

The spelling of 401553400332 in words is "four hundred one billion, five hundred fifty-three million, four hundred thousand, three hundred thirty-two".