4090554 has 32 divisors (see below), whose sum is σ = 9791040. Its totient is φ = 1258416.

The previous prime is 4090553. The next prime is 4090561. The reversal of 4090554 is 4550904.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 2212 + ... + 3615.

It is an arithmetic number, because the mean of its divisors is an integer number (305970).

Almost surely, 2^4090554 is an apocalyptic number.

4090554 is an abundant number, since it is smaller than the sum of its proper divisors (5700486).

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

4090554 is a wasteful number, since it uses less digits than its factorization.

4090554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5851 (or 5845 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 4090554 is about 2022.5118046627. The cubic root of 4090554 is about 159.9290570907.

The spelling of 4090554 in words is "four million, ninety thousand, five hundred fifty-four".