1296259970 has 16 divisors (see below), whose sum is σ = 2361381120. Its totient is φ = 512256624.

The previous prime is 1296259963. The next prime is 1296259973. The reversal of 1296259970 is 799526921.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1296259973) 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, 780050 + ... + 781709.

It is an arithmetic number, because the mean of its divisors is an integer number (147586320).

Almost surely, 2^1296259970 is an apocalyptic number.

1296259970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1296259970 is a deficient number, since it is larger than the sum of its proper divisors (1065121150).

1296259970 is a wasteful number, since it uses less digits than its factorization.

1296259970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561849.

The product of its (nonzero) digits is 612360, while the sum is 50.

The square root of 1296259970 is about 36003.6105133916. The cubic root of 1296259970 is about 1090.3452515723.

The spelling of 1296259970 in words is "one billion, two hundred ninety-six million, two hundred fifty-nine thousand, nine hundred seventy".