1372213456 has 10 divisors (see below), whose sum is σ = 2658663602. Its totient is φ = 686106720.

The previous prime is 1372213439. The next prime is 1372213477. The reversal of 1372213456 is 6543122731.

It can be written as a sum of positive squares in only one way, i.e., 1317690000 + 54523456 = 36300^2 + 7384^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42881655 + ... + 42881686.

Almost surely, 2^1372213456 is an apocalyptic number.

1372213456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1372213456 is a deficient number, since it is larger than the sum of its proper divisors (1286450146).

1372213456 is an equidigital number, since it uses as much as digits as its factorization.

1372213456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85763349 (or 85763343 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The square root of 1372213456 is about 37043.3996280039. The cubic root of 1372213456 is about 1111.2383592873.

The spelling of 1372213456 in words is "one billion, three hundred seventy-two million, two hundred thirteen thousand, four hundred fifty-six".