4209490 has 32 divisors (see below), whose sum is σ = 8054784. Its totient is φ = 1581120.

The previous prime is 4209481. The next prime is 4209493. The reversal of 4209490 is 949024.

It is a d-powerful number, because it can be written as 4² + 2¹¹ + 0 + 9⁴ + 4¹¹ + 9⁴ + 0 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4209493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11287 + ... + 11653.

It is an arithmetic number, because the mean of its divisors is an integer number (251712).

Almost surely, 2^4209490 is an apocalyptic number.

4209490 is a deficient number, since it is larger than the sum of its proper divisors (3845294).

4209490 is a wasteful number, since it uses less digits than its factorization.

4209490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 4209490 is about 2051.7041697087. The cubic root of 4209490 is about 161.4642925399.

The spelling of 4209490 in words is "four million, two hundred nine thousand, four hundred ninety".