42274238 has 4 divisors (see below), whose sum is σ = 63411360. Its totient is φ = 21137118.

The previous prime is 42274217. The next prime is 42274247. The reversal of 42274238 is 83247224.

42274238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×42274238² = 3574222396961288, which contains 22 as substring.

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, 10568558 + ... + 10568561.

It is an arithmetic number, because the mean of its divisors is an integer number (15852840).

Almost surely, 2^42274238 is an apocalyptic number.

42274238 is a deficient number, since it is larger than the sum of its proper divisors (21137122).

42274238 is a wasteful number, since it uses less digits than its factorization.

42274238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21137121.

The product of its digits is 21504, while the sum is 32.

The square root of 42274238 is about 6501.8641942138. The cubic root of 42274238 is about 348.3575782417.

The spelling of 42274238 in words is "forty-two million, two hundred seventy-four thousand, two hundred thirty-eight".