1296793090 has 16 divisors (see below), whose sum is σ = 2335038840. Its totient is φ = 518536960.

The previous prime is 1296793081. The next prime is 1296793093. The reversal of 1296793090 is 903976921.

It can be written as a sum of positive squares in 4 ways, for example, as 959078961 + 337714129 = 30969^2 + 18377^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1296793090.

It is not an unprimeable number, because it can be changed into a prime (1296793093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9900 + ... + 51880.

Almost surely, 2^1296793090 is an apocalyptic number.

1296793090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1296793090 is a deficient number, since it is larger than the sum of its proper divisors (1038245750).

1296793090 is a wasteful number, since it uses less digits than its factorization.

1296793090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45077.

The product of its (nonzero) digits is 183708, while the sum is 46.

The square root of 1296793090 is about 36011.0134542198. The cubic root of 1296793090 is about 1090.4947085236.

The spelling of 1296793090 in words is "one billion, two hundred ninety-six million, seven hundred ninety-three thousand, ninety".