2499420 has 96 divisors (see below), whose sum is σ = 8741376. Its totient is φ = 518400.

The previous prime is 2499403. The next prime is 2499421. The reversal of 2499420 is 249942.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2499421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4350 + ... + 4890.

It is an arithmetic number, because the mean of its divisors is an integer number (91056).

2^2499420 is an apocalyptic number.

2499420 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 2499420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4370688).

2499420 is an abundant number, since it is smaller than the sum of its proper divisors (6241956).

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

2499420 is a wasteful number, since it uses less digits than its factorization.

2499420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571 (or 569 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 2499420 is about 1580.9554073408. The cubic root of 2499420 is about 135.7103842699.

It can be divided in two parts, 249 and 9420, that added together give a palindrome (9669).

The spelling of 2499420 in words is "two million, four hundred ninety-nine thousand, four hundred twenty".