4090501 has 4 divisors (see below), whose sum is σ = 4098604. Its totient is φ = 4082400.

The previous prime is 4090451. The next prime is 4090507. The reversal of 4090501 is 1050904.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1288225 + 2802276 = 1135^2 + 1674^2 .

It is a cyclic number.

It is not a de Polignac number, because 4090501 - 2²¹ = 1993349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4090507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3240 + ... + 4321.

It is an arithmetic number, because the mean of its divisors is an integer number (1024651).

Almost surely, 2^4090501 is an apocalyptic number.

It is an amenable number.

4090501 is a deficient number, since it is larger than the sum of its proper divisors (8103).

4090501 is an equidigital number, since it uses as much as digits as its factorization.

4090501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8102.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 4090501 is about 2022.4987021009. The cubic root of 4090501 is about 159.9283663712.

The spelling of 4090501 in words is "four million, ninety thousand, five hundred one".