42739642 has 16 divisors (see below), whose sum is σ = 70362432. Its totient is φ = 19309120.

The previous prime is 42739633. The next prime is 42739693. The reversal of 42739642 is 24693724.

42739642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 2143 + ... + 9490.

It is an arithmetic number, because the mean of its divisors is an integer number (4397652).

Almost surely, 2^42739642 is an apocalyptic number.

42739642 is a deficient number, since it is larger than the sum of its proper divisors (27622790).

42739642 is a wasteful number, since it uses less digits than its factorization.

42739642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11813.

The product of its digits is 72576, while the sum is 37.

The square root of 42739642 is about 6537.5562712683. The cubic root of 42739642 is about 349.6312906291.

The spelling of 42739642 in words is "forty-two million, seven hundred thirty-nine thousand, six hundred forty-two".