1372731216 has 40 divisors (see below), whose sum is σ = 3552046464. Its totient is φ = 456825600.

The previous prime is 1372731203. The next prime is 1372731223. The reversal of 1372731216 is 6121372731.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6441 + ... + 52791.

Almost surely, 2^1372731216 is an apocalyptic number.

1372731216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1372731216 is an abundant number, since it is smaller than the sum of its proper divisors (2179315248).

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

1372731216 is a wasteful number, since it uses less digits than its factorization.

1372731216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46979 (or 46973 counting only the distinct ones).

The product of its digits is 10584, while the sum is 33.

The square root of 1372731216 is about 37050.3875283377. The cubic root of 1372731216 is about 1111.3781048985.

The spelling of 1372731216 in words is "one billion, three hundred seventy-two million, seven hundred thirty-one thousand, two hundred sixteen".