2749656 has 64 divisors (see below), whose sum is σ = 8467200. Its totient is φ = 724608.

The previous prime is 2749639. The next prime is 2749667. The reversal of 2749656 is 6569472.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1555 + ... + 2813.

It is an arithmetic number, because the mean of its divisors is an integer number (132300).

2^2749656 is an apocalyptic number.

2749656 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2749656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4233600).

2749656 is an abundant number, since it is smaller than the sum of its proper divisors (5717544).

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

2749656 is a wasteful number, since it uses less digits than its factorization.

2749656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288 (or 1284 counting only the distinct ones).

The product of its digits is 90720, while the sum is 39.

The square root of 2749656 is about 1658.2086720314. The cubic root of 2749656 is about 140.0961244617.

The spelling of 2749656 in words is "two million, seven hundred forty-nine thousand, six hundred fifty-six".