1372072756 has 24 divisors (see below), whose sum is σ = 2442699560. Its totient is φ = 674179200.

The previous prime is 1372072721. The next prime is 1372072759. The reversal of 1372072756 is 6572702731.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7952400 + 1364120356 = 2820^2 + 36934^2 .

It is a super-3 number, since 3×1372072756³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1372072759) 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 7 ways as a sum of consecutive naturals, for example, 393790 + ... + 397258.

Almost surely, 2^1372072756 is an apocalyptic number.

It is an amenable number.

1372072756 is a deficient number, since it is larger than the sum of its proper divisors (1070626804).

1372072756 is a wasteful number, since it uses less digits than its factorization.

1372072756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5155 (or 5153 counting only the distinct ones).

The product of its (nonzero) digits is 123480, while the sum is 40.

The square root of 1372072756 is about 37041.5004555701. The cubic root of 1372072756 is about 1111.2003776889.

The spelling of 1372072756 in words is "one billion, three hundred seventy-two million, seventy-two thousand, seven hundred fifty-six".