1296081692 has 12 divisors (see below), whose sum is σ = 2290600536. Its totient is φ = 641624400.

The previous prime is 1296081667. The next prime is 1296081707. The reversal of 1296081692 is 2961806921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1603658 + ... + 1604465.

It is an arithmetic number, because the mean of its divisors is an integer number (190883378).

Almost surely, 2^1296081692 is an apocalyptic number.

It is an amenable number.

1296081692 is a deficient number, since it is larger than the sum of its proper divisors (994518844).

1296081692 is a wasteful number, since it uses less digits than its factorization.

1296081692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3208228 (or 3208226 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 1296081692 is about 36001.1345932319. The cubic root of 1296081692 is about 1090.2952632759.

The spelling of 1296081692 in words is "one billion, two hundred ninety-six million, eighty-one thousand, six hundred ninety-two".