1296849760 has 48 divisors (see below), whose sum is σ = 3244038336. Its totient is φ = 488224768.

The previous prime is 1296849751. The next prime is 1296849773. The reversal of 1296849760 is 679486921.

It is a happy number.

It is a zygodrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 1296849698 and 1296849707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235672 + ... + 241111.

It is an arithmetic number, because the mean of its divisors is an integer number (67584132).

Almost surely, 2^1296849760 is an apocalyptic number.

1296849760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1296849760 is an abundant number, since it is smaller than the sum of its proper divisors (1947188576).

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

1296849760 is a wasteful number, since it uses less digits than its factorization.

1296849760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476815 (or 476807 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 52.

The square root of 1296849760 is about 36011.8002882389. The cubic root of 1296849760 is about 1090.5105932049.

The spelling of 1296849760 in words is "one billion, two hundred ninety-six million, eight hundred forty-nine thousand, seven hundred sixty".