1290960072 has 64 divisors (see below), whose sum is σ = 3591369600. Its totient is φ = 429675840.

The previous prime is 1290960043. The next prime is 1290960089. The reversal of 1290960072 is 2700690921.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152922 + ... + 161142.

It is an arithmetic number, because the mean of its divisors is an integer number (56115150).

Almost surely, 2^1290960072 is an apocalyptic number.

1290960072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1290960072 is an abundant number, since it is smaller than the sum of its proper divisors (2300409528).

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

1290960072 is a wasteful number, since it uses less digits than its factorization.

1290960072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8963 (or 8953 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 1290960072 is about 35929.9328137418. The cubic root of 1290960072 is about 1088.8572238806.

The spelling of 1290960072 in words is "one billion, two hundred ninety million, nine hundred sixty thousand, seventy-two".