2549940 has 24 divisors (see below), whose sum is σ = 7140000. Its totient is φ = 679968.

The previous prime is 2549927. The next prime is 2549951. The reversal of 2549940 is 499452.

2549940 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21190 + ... + 21309.

It is an arithmetic number, because the mean of its divisors is an integer number (297500).

2^2549940 is an apocalyptic number.

2549940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2549940 is an abundant number, since it is smaller than the sum of its proper divisors (4590060).

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

2549940 is a wasteful number, since it uses less digits than its factorization.

2549940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42511 (or 42509 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 2549940 is about 1596.8531554279. The cubic root of 2549940 is about 136.6186492691.

The spelling of 2549940 in words is "two million, five hundred forty-nine thousand, nine hundred forty".