2540884 has 18 divisors (see below), whose sum is σ = 4601562. Its totient is φ = 1227600.

The previous prime is 2540869. The next prime is 2540887. The reversal of 2540884 is 4880452.

It can be written as a sum of positive squares in only one way, i.e., 2402500 + 138384 = 1550^2 + 372^2 .

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540887) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3514 + ... + 4174.

2^2540884 is an apocalyptic number.

It is an amenable number.

2540884 is a deficient number, since it is larger than the sum of its proper divisors (2060678).

2540884 is a wasteful number, since it uses less digits than its factorization.

2540884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727 (or 694 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 2540884 is about 1594.0150563906. The cubic root of 2540884 is about 136.4567257171.

The spelling of 2540884 in words is "two million, five hundred forty thousand, eight hundred eighty-four".