1257080 has 32 divisors (see below), whose sum is σ = 3086640. Its totient is φ = 456960.

The previous prime is 1257079. The next prime is 1257089. The reversal of 1257080 is 807521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1257089) by changing a digit.

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, 989 + ... + 1868.

2^1257080 is an apocalyptic number.

1257080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1257080 is an abundant number, since it is smaller than the sum of its proper divisors (1829560).

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

1257080 is a wasteful number, since it uses less digits than its factorization.

1257080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2879 (or 2875 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 1257080 is about 1121.1957902169. The cubic root of 1257080 is about 107.9247303612.

The spelling of 1257080 in words is "one million, two hundred fifty-seven thousand, eighty".