1372690489 has 4 divisors (see below), whose sum is σ = 1374649380. Its totient is φ = 1370731600.

The previous prime is 1372690477. The next prime is 1372690559. The reversal of 1372690489 is 9840962731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 830592400 + 542098089 = 28820^2 + 23283^2 .

It is a cyclic number.

It is not a de Polignac number, because 1372690489 - 2⁵ = 1372690457 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1372690409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 978394 + ... + 979795.

It is an arithmetic number, because the mean of its divisors is an integer number (343662345).

Almost surely, 2^1372690489 is an apocalyptic number.

It is an amenable number.

1372690489 is a deficient number, since it is larger than the sum of its proper divisors (1958891).

1372690489 is an equidigital number, since it uses as much as digits as its factorization.

1372690489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1958890.

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 1372690489 is about 37049.8379078775. The cubic root of 1372690489 is about 1111.3671137826.

The spelling of 1372690489 in words is "one billion, three hundred seventy-two million, six hundred ninety thousand, four hundred eighty-nine".