2390056 has 8 divisors (see below), whose sum is σ = 4481370. Its totient is φ = 1195024.

The previous prime is 2390053. The next prime is 2390057. The reversal of 2390056 is 6500932.

It can be written as a sum of positive squares in only one way, i.e., 1988100 + 401956 = 1410^2 + 634^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 2390056.

It is not an unprimeable number, because it can be changed into a prime (2390051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149371 + ... + 149386.

2^2390056 is an apocalyptic number.

It is an amenable number.

2390056 is a deficient number, since it is larger than the sum of its proper divisors (2091314).

2390056 is a wasteful number, since it uses less digits than its factorization.

2390056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298763 (or 298759 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 2390056 is about 1545.9805949623. The cubic root of 2390056 is about 133.7014217855.

Adding to 2390056 its reverse (6500932), we get a palindrome (8890988).

The spelling of 2390056 in words is "two million, three hundred ninety thousand, fifty-six".