1290610988 has 12 divisors (see below), whose sum is σ = 2263602600. Its totient is φ = 643867392.

The previous prime is 1290610963. The next prime is 1290611011. The reversal of 1290610988 is 8890160921.

It is a super-2 number, since 2×1290610988² = 3331353444692672288, which contains 22 as substring.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

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, 357506 + ... + 361097.

It is an arithmetic number, because the mean of its divisors is an integer number (188633550).

Almost surely, 2^1290610988 is an apocalyptic number.

It is an amenable number.

1290610988 is a deficient number, since it is larger than the sum of its proper divisors (972991612).

1290610988 is a wasteful number, since it uses less digits than its factorization.

1290610988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719056 (or 719054 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 44.

The square root of 1290610988 is about 35925.0746415369. The cubic root of 1290610988 is about 1088.7590703411.

The spelling of 1290610988 in words is "one billion, two hundred ninety million, six hundred ten thousand, nine hundred eighty-eight".