2504840 has 32 divisors (see below), whose sum is σ = 6070680. Its totient is φ = 924672.

The previous prime is 2504837. The next prime is 2504869. The reversal of 2504840 is 484052.

It can be written as a sum of positive squares in 4 ways, for example, as 972196 + 1532644 = 986^2 + 1238^2 .

It is a congruent number.

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, 1889 + ... + 2928.

2^2504840 is an apocalyptic number.

2504840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2504840 is an abundant number, since it is smaller than the sum of its proper divisors (3565840).

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

2504840 is a wasteful number, since it uses less digits than its factorization.

2504840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4841 (or 4837 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 2504840 is about 1582.6686324054. The cubic root of 2504840 is about 135.8084095772.

Adding to 2504840 its reverse (484052), we get a palindrome (2988892).

It can be divided in two parts, 250 and 4840, that multiplied together give a square (1210000 = 1100²).

The spelling of 2504840 in words is "two million, five hundred four thousand, eight hundred forty".