1296212104 has 32 divisors (see below), whose sum is σ = 2766623040. Its totient is φ = 563569600.

The previous prime is 1296212087. The next prime is 1296212111. The reversal of 1296212104 is 4012126921.

It is a super-2 number, since 2×1296212104² = 3360331637112213632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318187 + ... + 322234.

It is an arithmetic number, because the mean of its divisors is an integer number (86456970).

Almost surely, 2^1296212104 is an apocalyptic number.

It is an amenable number.

1296212104 is an abundant number, since it is smaller than the sum of its proper divisors (1470410936).

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

1296212104 is a wasteful number, since it uses less digits than its factorization.

1296212104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640461 (or 640457 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1296212104 is about 36002.9457683673. The cubic root of 1296212104 is about 1090.3318306255.

The spelling of 1296212104 in words is "one billion, two hundred ninety-six million, two hundred twelve thousand, one hundred four".