2256635 has 16 divisors (see below), whose sum is σ = 2851200. Its totient is φ = 1712256.

The previous prime is 2256629. The next prime is 2256637. The reversal of 2256635 is 5366522.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2256635 - 2⁴ = 2256619 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a d-powerful number, because it can be written as 2¹⁰ + 2¹³ + 5² + 6 + 6⁸ + 3¹¹ + 5⁸ .

It is a junction number, because it is equal to n+sod(n) for n = 2256598 and 2256607.

It is not an unprimeable number, because it can be changed into a prime (2256637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11357 + ... + 11553.

It is an arithmetic number, because the mean of its divisors is an integer number (178200).

2^2256635 is an apocalyptic number.

2256635 is a deficient number, since it is larger than the sum of its proper divisors (594565).

2256635 is a wasteful number, since it uses less digits than its factorization.

2256635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310.

The product of its digits is 10800, while the sum is 29.

The square root of 2256635 is about 1502.2100385765. The cubic root of 2256635 is about 131.1657478936.

2256635 divided by its sum of digits (29) gives a triangular number (77815 = T₃₉₄).

The spelling of 2256635 in words is "two million, two hundred fifty-six thousand, six hundred thirty-five".