2504220 has 24 divisors (see below), whose sum is σ = 7011984. Its totient is φ = 667776.

The previous prime is 2504213. The next prime is 2504251. The reversal of 2504220 is 224052.

It is a super-2 number, since 2×2504220² = 12542235616800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2504220.

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, 20809 + ... + 20928.

It is an arithmetic number, because the mean of its divisors is an integer number (292166).

2^2504220 is an apocalyptic number.

2504220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2504220 is an abundant number, since it is smaller than the sum of its proper divisors (4507764).

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

2504220 is a wasteful number, since it uses less digits than its factorization.

2504220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41749 (or 41747 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 2504220 is about 1582.4727485805. The cubic root of 2504220 is about 135.7972035172.

Adding to 2504220 its reverse (224052), we get a palindrome (2728272).

The spelling of 2504220 in words is "two million, five hundred four thousand, two hundred twenty".