401626801472 has 56 divisors (see below), whose sum is σ = 858968157600. Its totient is φ = 185218500096.

The previous prime is 401626801453. The next prime is 401626801519. The reversal of 401626801472 is 274108626104.

It is a super-2 number, since 2×401626801472² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 855779 + ... + 1239197.

It is an arithmetic number, because the mean of its divisors is an integer number (15338717100).

Almost surely, 2^401626801472 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 401626801472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (429484078800).

401626801472 is an abundant number, since it is smaller than the sum of its proper divisors (457341356128).

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

401626801472 is a wasteful number, since it uses less digits than its factorization.

401626801472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384703 (or 384693 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The spelling of 401626801472 in words is "four hundred one billion, six hundred twenty-six million, eight hundred one thousand, four hundred seventy-two".