1197990544 has 45 divisors (see below), whose sum is σ = 2470527547. Its totient is φ = 562652672.

The previous prime is 1197990533. The next prime is 1197990557. The reversal of 1197990544 is 4450997911.

The square root of 1197990544 is 34612.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 420250000 + 777740544 = 20500^2 + 27888^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2353362 + ... + 2353870.

Almost surely, 2^1197990544 is an apocalyptic number.

1197990544 is the 34612-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1197990544

1197990544 is an abundant number, since it is smaller than the sum of its proper divisors (1272537003).

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

1197990544 is an frugal number, since it uses more digits than its factorization.

1197990544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060 (or 528 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 49.

The cubic root of 1197990544 is about 1062.0650806629.

Multiplying 1197990544 by its sum of digits (49), we get a square (58701536656 = 242284²).

The spelling of 1197990544 in words is "one billion, one hundred ninety-seven million, nine hundred ninety thousand, five hundred forty-four".