2742656 has 32 divisors (see below), whose sum is σ = 6246480. Its totient is φ = 1175040.

The previous prime is 2742653. The next prime is 2742667. The reversal of 2742656 is 6562472.

It is a tau number, because it is divible by the number of its divisors (32).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2742653) 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, 635 + ... + 2426.

2^2742656 is an apocalyptic number.

It is an amenable number.

2742656 is an abundant number, since it is smaller than the sum of its proper divisors (3503824).

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

2742656 is an equidigital number, since it uses as much as digits as its factorization.

2742656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3082 (or 3070 counting only the distinct ones).

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

The square root of 2742656 is about 1656.0966155391. The cubic root of 2742656 is about 139.9771391243.

The spelling of 2742656 in words is "two million, seven hundred forty-two thousand, six hundred fifty-six".