1260561392 has 10 divisors (see below), whose sum is σ = 2442337728. Its totient is φ = 630280688.

The previous prime is 1260561361. The next prime is 1260561397. The reversal of 1260561392 is 2931650621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1260561397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39392528 + ... + 39392559.

Almost surely, 2^1260561392 is an apocalyptic number.

It is an amenable number.

1260561392 is a deficient number, since it is larger than the sum of its proper divisors (1181776336).

1260561392 is an equidigital number, since it uses as much as digits as its factorization.

1260561392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78785095 (or 78785089 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 1260561392 is about 35504.3855319311. The cubic root of 1260561392 is about 1080.2426843746.

The spelling of 1260561392 in words is "one billion, two hundred sixty million, five hundred sixty-one thousand, three hundred ninety-two".