1372664240 has 20 divisors (see below), whose sum is σ = 3191444544. Its totient is φ = 549065664.

The previous prime is 1372664203. The next prime is 1372664299. The reversal of 1372664240 is 424662731.

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1372664240.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8579072 + ... + 8579231.

Almost surely, 2^1372664240 is an apocalyptic number.

1372664240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1372664240 is an abundant number, since it is smaller than the sum of its proper divisors (1818780304).

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

1372664240 is a wasteful number, since it uses less digits than its factorization.

1372664240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17158316 (or 17158310 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 1372664240 is about 37049.4836671174. The cubic root of 1372664240 is about 1111.3600297721.

The spelling of 1372664240 in words is "one billion, three hundred seventy-two million, six hundred sixty-four thousand, two hundred forty".