4322638 has 4 divisors (see below), whose sum is σ = 6483960. Its totient is φ = 2161318.

The previous prime is 4322603. The next prime is 4322651. The reversal of 4322638 is 8362234.

It is a semiprime because it is the product of two primes.

It is a d-powerful number, because it can be written as 4¹⁰ + 3⁴ + 2 + 2⁵ + 6⁸ + 3¹³ + 8 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1080658 + ... + 1080661.

It is an arithmetic number, because the mean of its divisors is an integer number (1620990).

Almost surely, 2^4322638 is an apocalyptic number.

4322638 is a deficient number, since it is larger than the sum of its proper divisors (2161322).

4322638 is a wasteful number, since it uses less digits than its factorization.

4322638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2161321.

The product of its digits is 6912, while the sum is 28.

The square root of 4322638 is about 2079.0954764031. The cubic root of 4322638 is about 162.8982013319.

It can be divided in two parts, 43226 and 38, that added together give a square (43264 = 208²).

The spelling of 4322638 in words is "four million, three hundred twenty-two thousand, six hundred thirty-eight".