1280972 has 24 divisors (see below), whose sum is σ = 2795520. Its totient is φ = 498960.

The previous prime is 1280969. The next prime is 1280987. The reversal of 1280972 is 2790821.

It is a happy number.

It is a plaindrome in base 16.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1772 + ... + 2387.

It is an arithmetic number, because the mean of its divisors is an integer number (116480).

2^1280972 is an apocalyptic number.

It is an amenable number.

1280972 is an abundant number, since it is smaller than the sum of its proper divisors (1514548).

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

1280972 is a wasteful number, since it uses less digits than its factorization.

1280972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4181 (or 4179 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 1280972 is about 1131.8003357483. The cubic root of 1280972 is about 108.6041811883.

The spelling of 1280972 in words is "one million, two hundred eighty thousand, nine hundred seventy-two".