1320894279 has 12 divisors (see below), whose sum is σ = 1908282376. Its totient is φ = 880446672.

The previous prime is 1320894257. The next prime is 1320894317. The reversal of 1320894279 is 9724980231.

1320894279 is a `hidden beast` number, since 13 + 208 + 9 + 427 + 9 = 666.

It is not a de Polignac number, because 1320894279 - 2¹² = 1320890183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320894229) 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, 78237 + ... + 93609.

Almost surely, 2^1320894279 is an apocalyptic number.

1320894279 is a deficient number, since it is larger than the sum of its proper divisors (587388097).

1320894279 is a wasteful number, since it uses less digits than its factorization.

1320894279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24926 (or 24923 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 1320894279 is about 36344.1092750944. The cubic root of 1320894279 is about 1097.2089791765.

The spelling of 1320894279 in words is "one billion, three hundred twenty million, eight hundred ninety-four thousand, two hundred seventy-nine".