1296370992 has 160 divisors (see below), whose sum is σ = 3983316480. Its totient is φ = 355461120.

The previous prime is 1296370979. The next prime is 1296370997. The reversal of 1296370992 is 2990736921.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (1296370997) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2270067 + ... + 2270637.

It is an arithmetic number, because the mean of its divisors is an integer number (24895728).

Almost surely, 2^1296370992 is an apocalyptic number.

1296370992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1296370992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1991658240).

1296370992 is an abundant number, since it is smaller than the sum of its proper divisors (2686945488).

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

1296370992 is a wasteful number, since it uses less digits than its factorization.

1296370992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851 (or 845 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 48.

The square root of 1296370992 is about 36005.1522979698. The cubic root of 1296370992 is about 1090.3763792930.

The spelling of 1296370992 in words is "one billion, two hundred ninety-six million, three hundred seventy thousand, nine hundred ninety-two".