4089420 has 48 divisors (see below), whose sum is σ = 12724320. Its totient is φ = 1090368.

The previous prime is 4089413. The next prime is 4089431. The reversal of 4089420 is 249804.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3247 + ... + 4326.

It is an arithmetic number, because the mean of its divisors is an integer number (265090).

Almost surely, 2^4089420 is an apocalyptic number.

It is an amenable number.

4089420 is an abundant number, since it is smaller than the sum of its proper divisors (8634900).

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

4089420 is a wasteful number, since it uses less digits than its factorization.

4089420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7591 (or 7583 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 4089420 is about 2022.2314407604. The cubic root of 4089420 is about 159.9142769972.

The spelling of 4089420 in words is "four million, eighty-nine thousand, four hundred twenty".