2689240 has 16 divisors (see below), whose sum is σ = 6050880. Its totient is φ = 1075680.

The previous prime is 2689223. The next prime is 2689243. The reversal of 2689240 is 429862.

2689240 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2689243) 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, 33576 + ... + 33655.

It is an arithmetic number, because the mean of its divisors is an integer number (378180).

2^2689240 is an apocalyptic number.

2689240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2689240 is an abundant number, since it is smaller than the sum of its proper divisors (3361640).

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

2689240 is a wasteful number, since it uses less digits than its factorization.

2689240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67242 (or 67238 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 2689240 is about 1639.8902402295. The cubic root of 2689240 is about 139.0624428313.

The spelling of 2689240 in words is "two million, six hundred eighty-nine thousand, two hundred forty".