4238664 has 16 divisors (see below), whose sum is σ = 10596720. Its totient is φ = 1412880.

The previous prime is 4238657. The next prime is 4238687. The reversal of 4238664 is 4668324.

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

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88282 + ... + 88329.

It is an arithmetic number, because the mean of its divisors is an integer number (662295).

Almost surely, 2^4238664 is an apocalyptic number.

It is an amenable number.

4238664 is an abundant number, since it is smaller than the sum of its proper divisors (6358056).

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

4238664 is a wasteful number, since it uses less digits than its factorization.

4238664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176620 (or 176616 counting only the distinct ones).

The product of its digits is 27648, while the sum is 33.

The square root of 4238664 is about 2058.8015931604. The cubic root of 4238664 is about 161.8364452039.

The spelling of 4238664 in words is "four million, two hundred thirty-eight thousand, six hundred sixty-four".