42212582 has 4 divisors (see below), whose sum is σ = 63318876. Its totient is φ = 21106290.

The previous prime is 42212551. The next prime is 42212587. The reversal of 42212582 is 28521224.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42212587) by changing a digit.

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, 10553144 + ... + 10553147.

It is an arithmetic number, because the mean of its divisors is an integer number (15829719).

Almost surely, 2^42212582 is an apocalyptic number.

42212582 is a deficient number, since it is larger than the sum of its proper divisors (21106294).

42212582 is a wasteful number, since it uses less digits than its factorization.

42212582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21106293.

The product of its digits is 2560, while the sum is 26.

The square root of 42212582 is about 6497.1210547442. The cubic root of 42212582 is about 348.1881386790.

The spelling of 42212582 in words is "forty-two million, two hundred twelve thousand, five hundred eighty-two".