42938816 has 14 divisors (see below), whose sum is σ = 85206840. Its totient is φ = 21469376.

The previous prime is 42938809. The next prime is 42938867. The reversal of 42938816 is 61883924.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335396 + ... + 335523.

Almost surely, 2^42938816 is an apocalyptic number.

It is an amenable number.

42938816 is a deficient number, since it is larger than the sum of its proper divisors (42268024).

42938816 is an equidigital number, since it uses as much as digits as its factorization.

42938816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670931 (or 670921 counting only the distinct ones).

The product of its digits is 82944, while the sum is 41.

The square root of 42938816 is about 6552.7716273345. The cubic root of 42938816 is about 350.1735628966.

The spelling of 42938816 in words is "forty-two million, nine hundred thirty-eight thousand, eight hundred sixteen".