4090551 has 16 divisors (see below), whose sum is σ = 5666304. Its totient is φ = 2623104.

The previous prime is 4090531. The next prime is 4090553. The reversal of 4090551 is 1550904.

It is not a de Polignac number, because 4090551 - 2⁵ = 4090519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4090553) 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, 9231 + ... + 9663.

It is an arithmetic number, because the mean of its divisors is an integer number (354144).

Almost surely, 2^4090551 is an apocalyptic number.

4090551 is a deficient number, since it is larger than the sum of its proper divisors (1575753).

4090551 is a wasteful number, since it uses less digits than its factorization.

4090551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 4090551 is about 2022.5110630105. The cubic root of 4090551 is about 159.9290179935.

The spelling of 4090551 in words is "four million, ninety thousand, five hundred fifty-one".