1407256 has 16 divisors (see below), whose sum is σ = 2689200. Its totient is φ = 690144.

The previous prime is 1407253. The next prime is 1407257. The reversal of 1407256 is 6527041.

It is a self number, because there is not a number n which added to its sum of digits gives 1407256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1407251) 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, 1236 + ... + 2083.

It is an arithmetic number, because the mean of its divisors is an integer number (168075).

2^1407256 is an apocalyptic number.

It is an amenable number.

1407256 is a deficient number, since it is larger than the sum of its proper divisors (1281944).

1407256 is a wasteful number, since it uses less digits than its factorization.

1407256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3378 (or 3374 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 1407256 is about 1186.2782135739. The cubic root of 1407256 is about 112.0618281072.

It can be divided in two parts, 140725 and 6, that multiplied together give a triangular number (844350 = T₁₂₉₉).

The spelling of 1407256 in words is "one million, four hundred seven thousand, two hundred fifty-six".