1257288 has 16 divisors (see below), whose sum is σ = 3143280. Its totient is φ = 419088.

The previous prime is 1257281. The next prime is 1257293. The reversal of 1257288 is 8827521.

It is a super-2 number, since 2×1257288² = 3161546229888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1257281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26170 + ... + 26217.

It is an arithmetic number, because the mean of its divisors is an integer number (196455).

2^1257288 is an apocalyptic number.

It is an amenable number.

1257288 is an abundant number, since it is smaller than the sum of its proper divisors (1885992).

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

1257288 is a wasteful number, since it uses less digits than its factorization.

1257288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52396 (or 52392 counting only the distinct ones).

The product of its digits is 8960, while the sum is 33.

The square root of 1257288 is about 1121.2885444880. The cubic root of 1257288 is about 107.9306825429.

The spelling of 1257288 in words is "one million, two hundred fifty-seven thousand, two hundred eighty-eight".