42938822 has 12 divisors (see below), whose sum is σ = 67861980. Its totient is φ = 20320308.

The previous prime is 42938809. The next prime is 42938867. The reversal of 42938822 is 22883924.

42938822 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (38).

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 in 5 ways as a sum of consecutive naturals, for example, 39863 + ... + 40925.

It is an arithmetic number, because the mean of its divisors is an integer number (5655165).

Almost surely, 2^42938822 is an apocalyptic number.

42938822 is a deficient number, since it is larger than the sum of its proper divisors (24923158).

42938822 is an equidigital number, since it uses as much as digits as its factorization.

42938822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2147 (or 1084 counting only the distinct ones).

The product of its digits is 55296, while the sum is 38.

The square root of 42938822 is about 6552.7720851560. The cubic root of 42938822 is about 350.1735792069.

Multiplying 42938822 by its sum of digits (38), we get a square (1631675236 = 40394²).

42938822 divided by its sum of digits (38) gives a square (1129969 = 1063²).

The spelling of 42938822 in words is "forty-two million, nine hundred thirty-eight thousand, eight hundred twenty-two".