1296296400 has 120 divisors (see below), whose sum is σ = 4745710144. Its totient is φ = 296294400.

The previous prime is 1296296389. The next prime is 1296296401. The reversal of 1296296400 is 46926921.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1296296401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68761 + ... + 85560.

Almost surely, 2^1296296400 is an apocalyptic number.

1296296400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1296296400 is an abundant number, since it is smaller than the sum of its proper divisors (3449413744).

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

1296296400 is a wasteful number, since it uses less digits than its factorization.

1296296400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154349 (or 154338 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 1296296400 is about 36004.1164313193. The cubic root of 1296296400 is about 1090.3554658057.

The spelling of 1296296400 in words is "one billion, two hundred ninety-six million, two hundred ninety-six thousand, four hundred".