2390724 has 72 divisors (see below), whose sum is σ = 7076160. Its totient is φ = 666432.

The previous prime is 2390723. The next prime is 2390737. The reversal of 2390724 is 4270932.

It is a super-2 number, since 2×2390724² = 11431122488352, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2390723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13267 + ... + 13445.

It is an arithmetic number, because the mean of its divisors is an integer number (98280).

2^2390724 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2390724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3538080).

2390724 is an abundant number, since it is smaller than the sum of its proper divisors (4685436).

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

2390724 is a wasteful number, since it uses less digits than its factorization.

2390724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 2390724 is about 1546.1966239777. The cubic root of 2390724 is about 133.7138767559.

The spelling of 2390724 in words is "two million, three hundred ninety thousand, seven hundred twenty-four".