401401013 has 16 divisors (see below), whose sum is σ = 440852160. Its totient is φ = 363211776.

The previous prime is 401400949. The next prime is 401401019. The reversal of 401401013 is 310104104.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 401401013 - 2⁶ = 401400949 is a prime.

It is a super-2 number, since 2×401401013² = 322245546474852338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401401019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 442106 + ... + 443012.

It is an arithmetic number, because the mean of its divisors is an integer number (27553260).

Almost surely, 2^401401013 is an apocalyptic number.

It is an amenable number.

401401013 is a deficient number, since it is larger than the sum of its proper divisors (39451147).

401401013 is a wasteful number, since it uses less digits than its factorization.

401401013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1556.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 401401013 is about 20034.9947092581. The cubic root of 401401013 is about 737.6655266877.

Adding to 401401013 its reverse (310104104), we get a palindrome (711505117).

The spelling of 401401013 in words is "four hundred one million, four hundred one thousand, thirteen".