6618432 has 28 divisors (see below), whose sum is σ = 17511776. Its totient is φ = 2206080.

The previous prime is 6618421. The next prime is 6618433. The reversal of 6618432 is 2348166.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 6618432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6618433) 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, 17044 + ... + 17427.

Almost surely, 2^6618432 is an apocalyptic number.

It is an amenable number.

6618432 is an abundant number, since it is smaller than the sum of its proper divisors (10893344).

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

6618432 is a wasteful number, since it uses less digits than its factorization.

6618432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34486 (or 34476 counting only the distinct ones).

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

The square root of 6618432 is about 2572.6313377552. The cubic root of 6618432 is about 187.7522010637.

The spelling of 6618432 in words is "six million, six hundred eighteen thousand, four hundred thirty-two".