42239612 has 6 divisors (see below), whose sum is σ = 73919328. Its totient is φ = 21119804.

The previous prime is 42239599. The next prime is 42239621. The reversal of 42239612 is 21693224.

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, 5279948 + ... + 5279955.

It is an arithmetic number, because the mean of its divisors is an integer number (12319888).

Almost surely, 2^42239612 is an apocalyptic number.

It is an amenable number.

42239612 is a deficient number, since it is larger than the sum of its proper divisors (31679716).

42239612 is a wasteful number, since it uses less digits than its factorization.

42239612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10559907 (or 10559905 counting only the distinct ones).

The product of its digits is 5184, while the sum is 29.

The square root of 42239612 is about 6499.2008739537. The cubic root of 42239612 is about 348.2624413066.

The spelling of 42239612 in words is "forty-two million, two hundred thirty-nine thousand, six hundred twelve".