4089432 has 16 divisors (see below), whose sum is σ = 10223640. Its totient is φ = 1363136.

The previous prime is 4089431. The next prime is 4089439. The reversal of 4089432 is 2349804.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 4089432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4089431) 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, 85173 + ... + 85220.

Almost surely, 2^4089432 is an apocalyptic number.

It is an amenable number.

4089432 is an abundant number, since it is smaller than the sum of its proper divisors (6134208).

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

4089432 is a wasteful number, since it uses less digits than its factorization.

4089432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170402 (or 170398 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 4089432 is about 2022.2344077777. The cubic root of 4089432 is about 159.9144334146.

The spelling of 4089432 in words is "four million, eighty-nine thousand, four hundred thirty-two".