4389432 has 16 divisors (see below), whose sum is σ = 10973640. Its totient is φ = 1463136.

The previous prime is 4389403. The next prime is 4389439. The reversal of 4389432 is 2349834.

It is a super-2 number, since 2×4389432² = 38534226565248, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 4389393 and 4389402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4389439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91423 + ... + 91470.

Almost surely, 2^4389432 is an apocalyptic number.

It is an amenable number.

4389432 is an abundant number, since it is smaller than the sum of its proper divisors (6584208).

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

4389432 is a wasteful number, since it uses less digits than its factorization.

4389432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182902 (or 182898 counting only the distinct ones).

The product of its digits is 20736, while the sum is 33.

The square root of 4389432 is about 2095.0971337864. The cubic root of 4389432 is about 163.7329582327.

It can be divided in two parts, 438 and 9432, that added together give a triangular number (9870 = T₁₄₀).

The spelling of 4389432 in words is "four million, three hundred eighty-nine thousand, four hundred thirty-two".