1372740660 has 36 divisors (see below), whose sum is σ = 4163980548. Its totient is φ = 366064128.

The previous prime is 1372740631. The next prime is 1372740661. The reversal of 1372740660 is 660472731.

It can be written as a sum of positive squares in 2 ways, for example, as 845762724 + 526977936 = 29082^2 + 22956^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1372740661) 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, 3812989 + ... + 3813348.

Almost surely, 2^1372740660 is an apocalyptic number.

1372740660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1372740660 is an abundant number, since it is smaller than the sum of its proper divisors (2791239888).

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

1372740660 is a wasteful number, since it uses less digits than its factorization.

1372740660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7626352 (or 7626347 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 1372740660 is about 37050.5149761781. The cubic root of 1372740660 is about 1111.3806535476.

The spelling of 1372740660 in words is "one billion, three hundred seventy-two million, seven hundred forty thousand, six hundred sixty".