1372917672 has 72 divisors (see below), whose sum is σ = 4325402250. Its totient is φ = 392261184.

The previous prime is 1372917661. The next prime is 1372917697. The reversal of 1372917672 is 2767192731.

It can be written as a sum of positive squares in only one way, i.e., 871784676 + 501132996 = 29526^2 + 22386^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 191047 + ... + 198102.

Almost surely, 2^1372917672 is an apocalyptic number.

1372917672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1372917672 is an abundant number, since it is smaller than the sum of its proper divisors (2952484578).

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

1372917672 is a wasteful number, since it uses less digits than its factorization.

1372917672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389175 (or 389161 counting only the distinct ones).

The product of its digits is 222264, while the sum is 45.

The square root of 1372917672 is about 37052.9036918836. The cubic root of 1372917672 is about 1111.4284215548.

The spelling of 1372917672 in words is "one billion, three hundred seventy-two million, nine hundred seventeen thousand, six hundred seventy-two".