1372136688 has 90 divisors (see below), whose sum is σ = 4158263616. Its totient is φ = 422188416.

The previous prime is 1372136687. The next prime is 1372136713. The reversal of 1372136688 is 8866312731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1372136687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3856 + ... + 52527.

Almost surely, 2^1372136688 is an apocalyptic number.

1372136688 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1372136688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2079131808).

1372136688 is an abundant number, since it is smaller than the sum of its proper divisors (2786126928).

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

1372136688 is a wasteful number, since it uses less digits than its factorization.

1372136688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56423 (or 56401 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 1372136688 is about 37042.3634235182. The cubic root of 1372136688 is about 1111.2176362876.

The spelling of 1372136688 in words is "one billion, three hundred seventy-two million, one hundred thirty-six thousand, six hundred eighty-eight".