3872438 has 4 divisors (see below), whose sum is σ = 5808660. Its totient is φ = 1936218.

The previous prime is 3872423. The next prime is 3872459. The reversal of 3872438 is 8342783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8342783 = 53 ⋅157411.

It is a junction number, because it is equal to n+sod(n) for n = 3872398 and 3872407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 968108 + ... + 968111.

It is an arithmetic number, because the mean of its divisors is an integer number (1452165).

Almost surely, 2^3872438 is an apocalyptic number.

3872438 is a deficient number, since it is larger than the sum of its proper divisors (1936222).

3872438 is a wasteful number, since it uses less digits than its factorization.

3872438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1936221.

The product of its digits is 32256, while the sum is 35.

The square root of 3872438 is about 1967.8511122542. The cubic root of 3872438 is about 157.0344089998.

The spelling of 3872438 in words is "three million, eight hundred seventy-two thousand, four hundred thirty-eight".