1372803912 has 48 divisors (see below), whose sum is σ = 3738587580. Its totient is φ = 455068800.

The previous prime is 1372803911. The next prime is 1372803931. The reversal of 1372803912 is 2193082731.

It can be written as a sum of positive squares in 2 ways, for example, as 761428836 + 611375076 = 27594^2 + 24726^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1372803911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39639 + ... + 65702.

Almost surely, 2^1372803912 is an apocalyptic number.

1372803912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1372803912 is an abundant number, since it is smaller than the sum of its proper divisors (2365783668).

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

1372803912 is a wasteful number, since it uses less digits than its factorization.

1372803912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105534 (or 105527 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 1372803912 is about 37051.3685577200. The cubic root of 1372803912 is about 1111.3977230426.

The spelling of 1372803912 in words is "one billion, three hundred seventy-two million, eight hundred three thousand, nine hundred twelve".