42742707 has 16 divisors (see below), whose sum is σ = 67233792. Its totient is φ = 23636160.

The previous prime is 42742703. The next prime is 42742747. The reversal of 42742707 is 70724724.

42742707 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42742707 - 2² = 42742703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42742703) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 32178 + ... + 33479.

It is an arithmetic number, because the mean of its divisors is an integer number (4202112).

Almost surely, 2^42742707 is an apocalyptic number.

42742707 is a deficient number, since it is larger than the sum of its proper divisors (24491085).

42742707 is a wasteful number, since it uses less digits than its factorization.

42742707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65698.

The product of its (nonzero) digits is 21952, while the sum is 33.

The square root of 42742707 is about 6537.7906818741. The cubic root of 42742707 is about 349.6396481651.

It can be divided in two parts, 427 and 42707, that added together give a palindrome (43134).

The spelling of 42742707 in words is "forty-two million, seven hundred forty-two thousand, seven hundred seven".