1290884808 has 48 divisors (see below), whose sum is σ = 3261973680. Its totient is φ = 425672256.

The previous prime is 1290884797. The next prime is 1290884809. The reversal of 1290884808 is 8084880921.

It is not an unprimeable number, because it can be changed into a prime (1290884809) 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, 1820358 + ... + 1821066.

It is an arithmetic number, because the mean of its divisors is an integer number (67957785).

Almost surely, 2^1290884808 is an apocalyptic number.

It is an amenable number.

1290884808 is an abundant number, since it is smaller than the sum of its proper divisors (1971088872).

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

1290884808 is an equidigital number, since it uses as much as digits as its factorization.

1290884808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534 (or 821 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 48.

The square root of 1290884808 is about 35928.8854266313. The cubic root of 1290884808 is about 1088.8360630550.

The spelling of 1290884808 in words is "one billion, two hundred ninety million, eight hundred eighty-four thousand, eight hundred eight".