32438638 has 4 divisors (see below), whose sum is σ = 48657960. Its totient is φ = 16219318.

The previous prime is 32438629. The next prime is 32438647. The reversal of 32438638 is 83683423.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83683423 = 1787 ⋅46829.

It is an interprime number because it is at equal distance from previous prime (32438629) and next prime (32438647).

It is a junction number, because it is equal to n+sod(n) for n = 32438597 and 32438606.

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, 8109658 + ... + 8109661.

It is an arithmetic number, because the mean of its divisors is an integer number (12164490).

Almost surely, 2^32438638 is an apocalyptic number.

32438638 is a deficient number, since it is larger than the sum of its proper divisors (16219322).

32438638 is a wasteful number, since it uses less digits than its factorization.

32438638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16219321.

The product of its digits is 82944, while the sum is 37.

The square root of 32438638 is about 5695.4927793827. The cubic root of 32438638 is about 318.9242457277.

It can be divided in two parts, 3243 and 8638, that added together give a square (11881 = 109²).

The spelling of 32438638 in words is "thirty-two million, four hundred thirty-eight thousand, six hundred thirty-eight".