12857450 has 24 divisors (see below), whose sum is σ = 24102252. Its totient is φ = 5102720.

The previous prime is 12857443. The next prime is 12857489. The reversal of 12857450 is 5475821.

It can be written as a sum of positive squares in 6 ways, for example, as 5987809 + 6869641 = 2447^2 + 2621^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5912 + ... + 7788.

Almost surely, 2^12857450 is an apocalyptic number.

12857450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12857450 is a deficient number, since it is larger than the sum of its proper divisors (11244802).

12857450 is a wasteful number, since it uses less digits than its factorization.

12857450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2026 (or 2021 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 12857450 is about 3585.7286567726. The cubic root of 12857450 is about 234.2708651462.

The spelling of 12857450 in words is "twelve million, eight hundred fifty-seven thousand, four hundred fifty".