4084090 has 16 divisors (see below), whose sum is σ = 7403400. Its totient is φ = 1622080.

The previous prime is 4084081. The next prime is 4084109. The reversal of 4084090 is 904804.

It can be written as a sum of positive squares in 4 ways, for example, as 2036329 + 2047761 = 1427^2 + 1431^2 .

It is a super-2 number, since 2×4084090² = 33359582256200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120 + ... + 2860.

Almost surely, 2^4084090 is an apocalyptic number.

4084090 is a deficient number, since it is larger than the sum of its proper divisors (3319310).

4084090 is a wasteful number, since it uses less digits than its factorization.

4084090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2897.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 4084090 is about 2020.9131599354. The cubic root of 4084090 is about 159.8447713241.

Adding to 4084090 its reverse (904804), we get a palindrome (4988894).

The spelling of 4084090 in words is "four million, eighty-four thousand, ninety".