1260492379 has 4 divisors (see below), whose sum is σ = 1261470040. Its totient is φ = 1259514720.

The previous prime is 1260492367. The next prime is 1260492407. The reversal of 1260492379 is 9732940621.

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

It is a cyclic number.

It is not a de Polignac number, because 1260492379 - 2²⁷ = 1126274651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1260492329) 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, 486894 + ... + 489475.

It is an arithmetic number, because the mean of its divisors is an integer number (315367510).

Almost surely, 2^1260492379 is an apocalyptic number.

1260492379 is a deficient number, since it is larger than the sum of its proper divisors (977661).

1260492379 is an equidigital number, since it uses as much as digits as its factorization.

1260492379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977660.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 1260492379 is about 35503.4136246080. The cubic root of 1260492379 is about 1080.2229703674. Note that the first 3 decimals are identical.

The spelling of 1260492379 in words is "one billion, two hundred sixty million, four hundred ninety-two thousand, three hundred seventy-nine".