2439490 has 16 divisors (see below), whose sum is σ = 4442040. Its totient is φ = 964480.

The previous prime is 2439487. The next prime is 2439491. The reversal of 2439490 is 949342.

It can be written as a sum of positive squares in 4 ways, for example, as 1343281 + 1096209 = 1159^2 + 1047^2 .

It is a super-2 number, since 2×2439490² = 11902222920200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2439491) 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, 481 + ... + 2260.

2^2439490 is an apocalyptic number.

2439490 is a deficient number, since it is larger than the sum of its proper divisors (2002550).

2439490 is a wasteful number, since it uses less digits than its factorization.

2439490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2837.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 2439490 is about 1561.8866796282. The cubic root of 2439490 is about 134.6169295898.

The spelling of 2439490 in words is "two million, four hundred thirty-nine thousand, four hundred ninety".