42678735 has 16 divisors (see below), whose sum is σ = 74494080. Its totient is φ = 20692640.

The previous prime is 42678697. The next prime is 42678737. The reversal of 42678735 is 53787624.

It is not a de Polignac number, because 42678735 - 2⁷ = 42678607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42678737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129165 + ... + 129494.

It is an arithmetic number, because the mean of its divisors is an integer number (4655880).

Almost surely, 2^42678735 is an apocalyptic number.

42678735 is a deficient number, since it is larger than the sum of its proper divisors (31815345).

42678735 is a wasteful number, since it uses less digits than its factorization.

42678735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258678.

The product of its digits is 282240, while the sum is 42.

The square root of 42678735 is about 6532.8963714420. The cubic root of 42678735 is about 349.4651286020.

Subtracting 42678735 from its reverse (53787624), we obtain a square (11108889 = 3333²).

The spelling of 42678735 in words is "forty-two million, six hundred seventy-eight thousand, seven hundred thirty-five".