401031320 has 16 divisors (see below), whose sum is σ = 902320560. Its totient is φ = 160412512.

The previous prime is 401031317. The next prime is 401031331. The reversal of 401031320 is 23130104.

It is a super-2 number, since 2×401031320² = 321652239241884800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401031295 and 401031304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5012852 + ... + 5012931.

It is an arithmetic number, because the mean of its divisors is an integer number (56395035).

Almost surely, 2^401031320 is an apocalyptic number.

401031320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401031320 is an abundant number, since it is smaller than the sum of its proper divisors (501289240).

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

401031320 is a wasteful number, since it uses less digits than its factorization.

401031320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10025794 (or 10025790 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 401031320 is about 20025.7664023128. The cubic root of 401031320 is about 737.4389921764.

Adding to 401031320 its reverse (23130104), we get a palindrome (424161424).

The spelling of 401031320 in words is "four hundred one million, thirty-one thousand, three hundred twenty".