4090536 has 24 divisors (see below), whose sum is σ = 11078730. Its totient is φ = 1363488.

The previous prime is 4090531. The next prime is 4090553. The reversal of 4090536 is 6350904.

It is a happy number.

4090536 is a `hidden beast` number, since 40 + 90 + 536 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2268036 + 1822500 = 1506^2 + 1350^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (4090531) 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, 28335 + ... + 28478.

Almost surely, 2^4090536 is an apocalyptic number.

It is an amenable number.

4090536 is an abundant number, since it is smaller than the sum of its proper divisors (6988194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4090536 is a wasteful number, since it uses less digits than its factorization.

4090536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56825 (or 56818 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 4090536 is about 2022.5073547456. The cubic root of 4090536 is about 159.9288225074.

The spelling of 4090536 in words is "four million, ninety thousand, five hundred thirty-six".