2389490 has 8 divisors (see below), whose sum is σ = 4301100. Its totient is φ = 955792.

The previous prime is 2389483. The next prime is 2389501. The reversal of 2389490 is 949832.

It can be written as a sum of positive squares in 2 ways, for example, as 2105401 + 284089 = 1451^2 + 533^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2389490.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119465 + ... + 119484.

2^2389490 is an apocalyptic number.

2389490 is a deficient number, since it is larger than the sum of its proper divisors (1911610).

2389490 is a wasteful number, since it uses less digits than its factorization.

2389490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238956.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 2389490 is about 1545.7975287857. The cubic root of 2389490 is about 133.6908668056.

Adding to 2389490 its product of nonzero digits (15552), we get a palindrome (2405042).

The spelling of 2389490 in words is "two million, three hundred eighty-nine thousand, four hundred ninety".