1372489720 has 32 divisors (see below), whose sum is σ = 3529260000. Its totient is φ = 470567808.

The previous prime is 1372489697. The next prime is 1372489733. The reversal of 1372489720 is 279842731.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2450595 + ... + 2451154.

It is an arithmetic number, because the mean of its divisors is an integer number (110289375).

Almost surely, 2^1372489720 is an apocalyptic number.

1372489720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1372489720 is an abundant number, since it is smaller than the sum of its proper divisors (2156770280).

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

1372489720 is a wasteful number, since it uses less digits than its factorization.

1372489720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4901767 (or 4901763 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 1372489720 is about 37047.1283637477. The cubic root of 1372489720 is about 1111.3129284813.

The spelling of 1372489720 in words is "one billion, three hundred seventy-two million, four hundred eighty-nine thousand, seven hundred twenty".