2504820 has 48 divisors (see below), whose sum is σ = 7096320. Its totient is φ = 660096.

The previous prime is 2504819. The next prime is 2504837. The reversal of 2504820 is 284052.

2504820 is a Rhonda number in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6349 + ... + 6731.

It is an arithmetic number, because the mean of its divisors is an integer number (147840).

2^2504820 is an apocalyptic number.

2504820 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 2504820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3548160).

2504820 is an abundant number, since it is smaller than the sum of its proper divisors (4591500).

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

2504820 is a wasteful number, since it uses less digits than its factorization.

2504820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504 (or 502 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 2504820 is about 1582.6623139508. The cubic root of 2504820 is about 135.8080481203.

Adding to 2504820 its reverse (284052), we get a palindrome (2788872).

The spelling of 2504820 in words is "two million, five hundred four thousand, eight hundred twenty".