42739768 has 16 divisors (see below), whose sum is σ = 84851280. Its totient is φ = 20112768.

The previous prime is 42739757. The next prime is 42739789. The reversal of 42739768 is 86793724.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156996 + ... + 157267.

It is an arithmetic number, because the mean of its divisors is an integer number (5303205).

Almost surely, 2^42739768 is an apocalyptic number.

It is an amenable number.

42739768 is a deficient number, since it is larger than the sum of its proper divisors (42111512).

42739768 is a wasteful number, since it uses less digits than its factorization.

42739768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314286 (or 314282 counting only the distinct ones).

The product of its digits is 508032, while the sum is 46.

The square root of 42739768 is about 6537.5659078896. The cubic root of 42739768 is about 349.6316342094.

It can be divided in two parts, 4273 and 9768, that added together give a palindrome (14041).

The spelling of 42739768 in words is "forty-two million, seven hundred thirty-nine thousand, seven hundred sixty-eight".