2500420 has 48 divisors (see below), whose sum is σ = 5785920. Its totient is φ = 902016.

The previous prime is 2500417. The next prime is 2500439. The reversal of 2500420 is 240052.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 2500420.

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, 15259 + ... + 15421.

It is an arithmetic number, because the mean of its divisors is an integer number (120540).

2^2500420 is an apocalyptic number.

2500420 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 2500420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2892960).

2500420 is an abundant number, since it is smaller than the sum of its proper divisors (3285500).

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

2500420 is a wasteful number, since it uses less digits than its factorization.

2500420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 2500420 is about 1581.2716401681. The cubic root of 2500420 is about 135.7284807735.

Adding to 2500420 its reverse (240052), we get a palindrome (2740472).

The spelling of 2500420 in words is "two million, five hundred thousand, four hundred twenty".