1290979434 has 16 divisors (see below), whose sum is σ = 2717851680. Its totient is φ = 407677680.

The previous prime is 1290979429. The next prime is 1290979441. The reversal of 1290979434 is 4349790921.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5662077 + ... + 5662304.

It is an arithmetic number, because the mean of its divisors is an integer number (169865730).

Almost surely, 2^1290979434 is an apocalyptic number.

1290979434 is an abundant number, since it is smaller than the sum of its proper divisors (1426872246).

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

1290979434 is a wasteful number, since it uses less digits than its factorization.

1290979434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11324405.

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 1290979434 is about 35930.2022538143. The cubic root of 1290979434 is about 1088.8626674644.

The spelling of 1290979434 in words is "one billion, two hundred ninety million, nine hundred seventy-nine thousand, four hundred thirty-four".