2544668 has 18 divisors (see below), whose sum is σ = 5180616. Its totient is φ = 1090488.

The previous prime is 2544643. The next prime is 2544691. The reversal of 2544668 is 8664452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6296 + ... + 6687.

It is an arithmetic number, because the mean of its divisors is an integer number (287812).

2^2544668 is an apocalyptic number.

2544668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2544668 is an abundant number, since it is smaller than the sum of its proper divisors (2635948).

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

2544668 is a wasteful number, since it uses less digits than its factorization.

2544668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13001 (or 12992 counting only the distinct ones).

The product of its digits is 46080, while the sum is 35.

The square root of 2544668 is about 1595.2015546632. The cubic root of 2544668 is about 136.5244313052.

The spelling of 2544668 in words is "two million, five hundred forty-four thousand, six hundred sixty-eight".