4009490 has 8 divisors (see below), whose sum is σ = 7217100. Its totient is φ = 1603792.

The previous prime is 4009483. The next prime is 4009507. The reversal of 4009490 is 949004.

4009490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3598609 + 410881 = 1897^2 + 641^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200465 + ... + 200484.

Almost surely, 2^4009490 is an apocalyptic number.

4009490 is a deficient number, since it is larger than the sum of its proper divisors (3207610).

4009490 is a wasteful number, since it uses less digits than its factorization.

4009490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400956.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 4009490 is about 2002.3710944777. The cubic root of 4009490 is about 158.8655430152.

The spelling of 4009490 in words is "four million, nine thousand, four hundred ninety".