1256046 has 16 divisors (see below), whose sum is σ = 2740608. Its totient is φ = 380600.

The previous prime is 1256041. The next prime is 1256063. The reversal of 1256046 is 6406521.

1256046 = 169² + 170² + ... + 204².

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1256041) 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, 9450 + ... + 9581.

It is an arithmetic number, because the mean of its divisors is an integer number (171288).

2^1256046 is an apocalyptic number.

1256046 is an abundant number, since it is smaller than the sum of its proper divisors (1484562).

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

1256046 is a wasteful number, since it uses less digits than its factorization.

1256046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19047.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1256046 is about 1120.7345805319. The cubic root of 1256046 is about 107.8951314011.

The spelling of 1256046 in words is "one million, two hundred fifty-six thousand, forty-six".