401807172 has 96 divisors (see below), whose sum is σ = 1078382592. Its totient is φ = 115347456.

The previous prime is 401807167. The next prime is 401807201. The reversal of 401807172 is 271708104.

It is a super-2 number, since 2×401807172² = 322898006941275168, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 336208 + ... + 337400.

It is an arithmetic number, because the mean of its divisors is an integer number (11233152).

Almost surely, 2^401807172 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 401807172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (539191296).

401807172 is an abundant number, since it is smaller than the sum of its proper divisors (676575420).

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

401807172 is a wasteful number, since it uses less digits than its factorization.

401807172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357 (or 1355 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 401807172 is about 20045.1283857201. The cubic root of 401807172 is about 737.9142459536.

The spelling of 401807172 in words is "four hundred one million, eight hundred seven thousand, one hundred seventy-two".