2589240 has 32 divisors (see below), whose sum is σ = 7768080. Its totient is φ = 690432.

The previous prime is 2589239. The next prime is 2589247. The reversal of 2589240 is 429852.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2589198 and 2589207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2589247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10669 + ... + 10908.

2^2589240 is an apocalyptic number.

2589240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2589240 is an abundant number, since it is smaller than the sum of its proper divisors (5178840).

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

2589240 is a wasteful number, since it uses less digits than its factorization.

2589240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21591 (or 21587 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 2589240 is about 1609.1115561079. Note that the first 3 decimals coincide. The cubic root of 2589240 is about 137.3169354433.

The spelling of 2589240 in words is "two million, five hundred eighty-nine thousand, two hundred forty".