2499444 has 24 divisors (see below), whose sum is σ = 6480320. Its totient is φ = 833112.

The previous prime is 2499443. The next prime is 2499449. The reversal of 2499444 is 4449942.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 2499399 and 2499408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2499443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11464 + ... + 11679.

2^2499444 is an apocalyptic number.

It is an amenable number.

2499444 is an abundant number, since it is smaller than the sum of its proper divisors (3980876).

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

2499444 is a wasteful number, since it uses less digits than its factorization.

2499444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23156 (or 23148 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 2499444 is about 1580.9629976695. The cubic root of 2499444 is about 135.7108186425.

The spelling of 2499444 in words is "two million, four hundred ninety-nine thousand, four hundred forty-four".