1290868734 has 16 divisors (see below), whose sum is σ = 2582809488. Its totient is φ = 430110912.

The previous prime is 1290868687. The next prime is 1290868753. The reversal of 1290868734 is 4378680921.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28567 + ... + 58290.

It is an arithmetic number, because the mean of its divisors is an integer number (161425593).

Almost surely, 2^1290868734 is an apocalyptic number.

1290868734 is an abundant number, since it is smaller than the sum of its proper divisors (1291940754).

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

1290868734 is a wasteful number, since it uses less digits than its factorization.

1290868734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89339.

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 1290868734 is about 35928.6617340529. The cubic root of 1290868734 is about 1088.8315436681.

The spelling of 1290868734 in words is "one billion, two hundred ninety million, eight hundred sixty-eight thousand, seven hundred thirty-four".