41821438 has 4 divisors (see below), whose sum is σ = 62732160. Its totient is φ = 20910718.

The previous prime is 41821427. The next prime is 41821463. The reversal of 41821438 is 83412814.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83412814 = 2 ⋅41706407.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 10455358 + ... + 10455361.

It is an arithmetic number, because the mean of its divisors is an integer number (15683040).

Almost surely, 2^41821438 is an apocalyptic number.

41821438 is a deficient number, since it is larger than the sum of its proper divisors (20910722).

41821438 is a wasteful number, since it uses less digits than its factorization.

41821438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20910721.

The product of its digits is 6144, while the sum is 31.

The square root of 41821438 is about 6466.9496673470. The cubic root of 41821438 is about 347.1093565805.

The spelling of 41821438 in words is "forty-one million, eight hundred twenty-one thousand, four hundred thirty-eight".