1372728336 has 120 divisors (see below), whose sum is σ = 4138172640. Its totient is φ = 390974976.

The previous prime is 1372728317. The next prime is 1372728337. The reversal of 1372728336 is 6338272731.

It is a Harshad number since it is a multiple of its sum of digits (42).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1372728337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 961255 + ... + 962681.

It is an arithmetic number, because the mean of its divisors is an integer number (34484772).

Almost surely, 2^1372728336 is an apocalyptic number.

1372728336 is a gapful number since it is divisible by the number (16) 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 1372728336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2069086320).

1372728336 is an abundant number, since it is smaller than the sum of its proper divisors (2765444304).

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

1372728336 is a wasteful number, since it uses less digits than its factorization.

1372728336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861 (or 1848 counting only the distinct ones).

The product of its digits is 254016, while the sum is 42.

The square root of 1372728336 is about 37050.3486623271. The cubic root of 1372728336 is about 1111.3773276715.

The spelling of 1372728336 in words is "one billion, three hundred seventy-two million, seven hundred twenty-eight thousand, three hundred thirty-six".