2489744 has 10 divisors (see below), whose sum is σ = 4823910. Its totient is φ = 1244864.

The previous prime is 2489719. The next prime is 2489749. The reversal of 2489744 is 4479842.

It can be written as a sum of positive squares in only one way, i.e., 2016400 + 473344 = 1420^2 + 688^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2489698 and 2489707.

It is not an unprimeable number, because it can be changed into a prime (2489749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77789 + ... + 77820.

It is an arithmetic number, because the mean of its divisors is an integer number (482391).

2^2489744 is an apocalyptic number.

It is an amenable number.

2489744 is a deficient number, since it is larger than the sum of its proper divisors (2334166).

2489744 is a wasteful number, since it uses less digits than its factorization.

2489744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155617 (or 155611 counting only the distinct ones).

The product of its digits is 64512, while the sum is 38.

The square root of 2489744 is about 1577.8922650168. The cubic root of 2489744 is about 135.5350326759.

The spelling of 2489744 in words is "two million, four hundred eighty-nine thousand, seven hundred forty-four".