401311516 has 12 divisors (see below), whose sum is σ = 702649080. Its totient is φ = 200554640.

The previous prime is 401311507. The next prime is 401311517. The reversal of 401311516 is 615113104.

It is a super-2 number, since 2×401311516² = 322101865748436512, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401311517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15970 + ... + 32521.

It is an arithmetic number, because the mean of its divisors is an integer number (58554090).

Almost surely, 2^401311516 is an apocalyptic number.

It is an amenable number.

401311516 is a deficient number, since it is larger than the sum of its proper divisors (301337564).

401311516 is a wasteful number, since it uses less digits than its factorization.

401311516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50564 (or 50562 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 401311516 is about 20032.7610678109. The cubic root of 401311516 is about 737.6106989247.

The spelling of 401311516 in words is "four hundred one million, three hundred eleven thousand, five hundred sixteen".