1296296500 has 24 divisors (see below), whose sum is σ = 2831112648. Its totient is φ = 518518400.

The previous prime is 1296296471. The next prime is 1296296501. The reversal of 1296296500 is 56926921.

It can be written as a sum of positive squares in 4 ways, for example, as 232623504 + 1063672996 = 15252^2 + 32614^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1296296501) 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, 1295797 + ... + 1296796.

It is an arithmetic number, because the mean of its divisors is an integer number (117963027).

Almost surely, 2^1296296500 is an apocalyptic number.

1296296500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1296296500 is an abundant number, since it is smaller than the sum of its proper divisors (1534816148).

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

1296296500 is a wasteful number, since it uses less digits than its factorization.

1296296500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2592612 (or 2592600 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 1296296500 is about 36004.1178200494. The cubic root of 1296296500 is about 1090.3554938434.

The spelling of 1296296500 in words is "one billion, two hundred ninety-six million, two hundred ninety-six thousand, five hundred".