2624240 has 20 divisors (see below), whose sum is σ = 6101544. Its totient is φ = 1049664.

The previous prime is 2624233. The next prime is 2624257. The reversal of 2624240 is 424262.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a zygodrome in base 4.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16322 + ... + 16481.

2^2624240 is an apocalyptic number.

2624240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2624240 is an abundant number, since it is smaller than the sum of its proper divisors (3477304).

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

2624240 is a wasteful number, since it uses less digits than its factorization.

2624240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32816 (or 32810 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2624240 is about 1619.9506165313. The cubic root of 2624240 is about 137.9328946301.

The spelling of 2624240 in words is "two million, six hundred twenty-four thousand, two hundred forty".