2764256 has 24 divisors (see below), whose sum is σ = 5937624. Its totient is φ = 1256320.

The previous prime is 2764247. The next prime is 2764271. The reversal of 2764256 is 6524672.

It is a super-2 number, since 2×2764256² = 15282222467072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a d-powerful number, because it can be written as 2⁷ + 7 + 6² + 4¹⁰ + 2¹⁵ + 5⁵ + 6⁸ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3575 + ... + 4278.

It is an arithmetic number, because the mean of its divisors is an integer number (247401).

2^2764256 is an apocalyptic number.

It is an amenable number.

2764256 is an abundant number, since it is smaller than the sum of its proper divisors (3173368).

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

2764256 is a wasteful number, since it uses less digits than its factorization.

2764256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7874 (or 7866 counting only the distinct ones).

The product of its digits is 20160, while the sum is 32.

The square root of 2764256 is about 1662.6051846425. The cubic root of 2764256 is about 140.3436455894.

The spelling of 2764256 in words is "two million, seven hundred sixty-four thousand, two hundred fifty-six".