1371913444 has 36 divisors (see below), whose sum is σ = 2645682480. Its totient is φ = 617332560.

The previous prime is 1371913399. The next prime is 1371913457. The reversal of 1371913444 is 4443191731.

It is a super-2 number, since 2×1371913444² = 3764292995655882272, which contains 22 as substring.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 465327 + ... + 468265.

It is an arithmetic number, because the mean of its divisors is an integer number (73491180).

Almost surely, 2^1371913444 is an apocalyptic number.

It is an amenable number.

1371913444 is a deficient number, since it is larger than the sum of its proper divisors (1273769036).

1371913444 is a wasteful number, since it uses less digits than its factorization.

1371913444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3160 (or 3055 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

The square root of 1371913444 is about 37039.3499403000. The cubic root of 1371913444 is about 1111.1573686949.

The spelling of 1371913444 in words is "one billion, three hundred seventy-one million, nine hundred thirteen thousand, four hundred forty-four".