1256970 has 64 divisors (see below), whose sum is σ = 3556224. Its totient is φ = 280320.

The previous prime is 1256953. The next prime is 1256989. The reversal of 1256970 is 796521.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4144 + ... + 4436.

It is an arithmetic number, because the mean of its divisors is an integer number (55566).

2^1256970 is an apocalyptic number.

1256970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1256970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1778112).

1256970 is an abundant number, since it is smaller than the sum of its proper divisors (2299254).

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

1256970 is a wasteful number, since it uses less digits than its factorization.

1256970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 1256970 is about 1121.1467343751. The cubic root of 1256970 is about 107.9215823073.

The spelling of 1256970 in words is "one million, two hundred fifty-six thousand, nine hundred seventy".