2504240 has 40 divisors (see below), whose sum is σ = 6079968. Its totient is φ = 957440.

The previous prime is 2504213. The next prime is 2504251. The reversal of 2504240 is 424052.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1160 + ... + 2520.

2^2504240 is an apocalyptic number.

2504240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2504240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3039984).

2504240 is an abundant number, since it is smaller than the sum of its proper divisors (3575728).

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

2504240 is a wasteful number, since it uses less digits than its factorization.

2504240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397 (or 1391 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 2504240 is about 1582.4790677921. The cubic root of 2504240 is about 135.7975650319.

Adding to 2504240 its reverse (424052), we get a palindrome (2928292).

It can be divided in two parts, 2504 and 240, that added together give a cube (2744 = 14³).

The spelling of 2504240 in words is "two million, five hundred four thousand, two hundred forty".