4090557 has 8 divisors (see below), whose sum is σ = 5774976. Its totient is φ = 2566592.

The previous prime is 4090553. The next prime is 4090561. The reversal of 4090557 is 7550904.

It is an interprime number because it is at equal distance from previous prime (4090553) and next prime (4090561).

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

It is not a de Polignac number, because 4090557 - 2² = 4090553 is a prime.

4090557 is a lucky number.

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 7 ways as a sum of consecutive naturals, for example, 40053 + ... + 40154.

It is an arithmetic number, because the mean of its divisors is an integer number (721872).

Almost surely, 2^4090557 is an apocalyptic number.

It is an amenable number.

4090557 is a deficient number, since it is larger than the sum of its proper divisors (1684419).

4090557 is a wasteful number, since it uses less digits than its factorization.

4090557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80227.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 4090557 is about 2022.5125463146. The cubic root of 4090557 is about 159.9290961879.

The spelling of 4090557 in words is "four million, ninety thousand, five hundred fifty-seven".