1290610990 has 32 divisors (see below), whose sum is σ = 2356887456. Its totient is φ = 508767360.

The previous prime is 1290610963. The next prime is 1290611011. The reversal of 1290610990 is 990160921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 380944 + ... + 384316.

It is an arithmetic number, because the mean of its divisors is an integer number (73652733).

Almost surely, 2^1290610990 is an apocalyptic number.

1290610990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1290610990 is a deficient number, since it is larger than the sum of its proper divisors (1066276466).

1290610990 is a wasteful number, since it uses less digits than its factorization.

1290610990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3924.

The product of its (nonzero) digits is 8748, while the sum is 37.

The square root of 1290610990 is about 35925.0746693726. The cubic root of 1290610990 is about 1088.7590709035.

The spelling of 1290610990 in words is "one billion, two hundred ninety million, six hundred ten thousand, nine hundred ninety".