4090601 has 6 divisors (see below), whose sum is σ = 4141806. Its totient is φ = 4040000.

The previous prime is 4090589. The next prime is 4090637. The reversal of 4090601 is 1060904.

It can be written as a sum of positive squares in 3 ways, for example, as 3841600 + 249001 = 1960^2 + 499^2 .

It is a de Polignac number, because none of the positive numbers 2^k-4090601 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4090651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10001 + ... + 10401.

It is an arithmetic number, because the mean of its divisors is an integer number (690301).

Almost surely, 2^4090601 is an apocalyptic number.

4090601 is the 905-th centered decagonal number.

It is an amenable number.

4090601 is a deficient number, since it is larger than the sum of its proper divisors (51205).

4090601 is an equidigital number, since it uses as much as digits as its factorization.

4090601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603 (or 502 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 4090601 is about 2022.5234238446. The cubic root of 4090601 is about 159.9296696106.

The spelling of 4090601 in words is "four million, ninety thousand, six hundred one".