1401931116 has 36 divisors (see below), whose sum is σ = 3559402392. Its totient is φ = 465249024.

The previous prime is 1401931067. The next prime is 1401931117. The reversal of 1401931116 is 6111391041.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1401931116.

It is not an unprimeable number, because it can be changed into a prime (1401931117) 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 11 ways as a sum of consecutive naturals, for example, 77605 + ... + 93948.

Almost surely, 2^1401931116 is an apocalyptic number.

It is an amenable number.

1401931116 is an abundant number, since it is smaller than the sum of its proper divisors (2157471276).

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

1401931116 is a wasteful number, since it uses less digits than its factorization.

1401931116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171790 (or 171785 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 1401931116 is about 37442.3705980270. The cubic root of 1401931116 is about 1119.2030672204.

The spelling of 1401931116 in words is "one billion, four hundred one million, nine hundred thirty-one thousand, one hundred sixteen".