1275988 has 24 divisors (see below), whose sum is σ = 2576000. Its totient is φ = 541728.

The previous prime is 1275979. The next prime is 1276001. The reversal of 1275988 is 8895721.

It is a super-2 number, since 2×1275988² = 3256290752288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1275988.

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, 5458 + ... + 5686.

2^1275988 is an apocalyptic number.

It is an amenable number.

1275988 is an abundant number, since it is smaller than the sum of its proper divisors (1300012).

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

1275988 is a wasteful number, since it uses less digits than its factorization.

1275988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439 (or 437 counting only the distinct ones).

The product of its digits is 40320, while the sum is 40.

The square root of 1275988 is about 1129.5963880962. The cubic root of 1275988 is about 108.4631458995.

The spelling of 1275988 in words is "one million, two hundred seventy-five thousand, nine hundred eighty-eight".