1372790440 has 32 divisors (see below), whose sum is σ = 3530033280. Its totient is φ = 470670912.

The previous prime is 1372790431. The next prime is 1372790449. The reversal of 1372790440 is 440972731.

It is an interprime number because it is at equal distance from previous prime (1372790431) and next prime (1372790449).

It is a self number, because there is not a number n which added to its sum of digits gives 1372790440.

It is not an unprimeable number, because it can be changed into a prime (1372790449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2451132 + ... + 2451691.

It is an arithmetic number, because the mean of its divisors is an integer number (110313540).

Almost surely, 2^1372790440 is an apocalyptic number.

1372790440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1372790440 is an abundant number, since it is smaller than the sum of its proper divisors (2157242840).

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

1372790440 is a wasteful number, since it uses less digits than its factorization.

1372790440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4902841 (or 4902837 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 1372790440 is about 37051.1867556223. The cubic root of 1372790440 is about 1111.3940874666.

The spelling of 1372790440 in words is "one billion, three hundred seventy-two million, seven hundred ninety thousand, four hundred forty".