4281638 has 8 divisors (see below), whose sum is σ = 6500088. Its totient is φ = 2114944.

The previous prime is 4281619. The next prime is 4281643. The reversal of 4281638 is 8361824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent 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, 12731 + ... + 13062.

It is an arithmetic number, because the mean of its divisors is an integer number (812511).

Almost surely, 2^4281638 is an apocalyptic number.

4281638 is a deficient number, since it is larger than the sum of its proper divisors (2218450).

4281638 is a wasteful number, since it uses less digits than its factorization.

4281638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25878.

The product of its digits is 9216, while the sum is 32.

The square root of 4281638 is about 2069.2119272805. The cubic root of 4281638 is about 162.3815373302.

The spelling of 4281638 in words is "four million, two hundred eighty-one thousand, six hundred thirty-eight".