42007733 has 4 divisors (see below), whose sum is σ = 42479820. Its totient is φ = 41535648.

The previous prime is 42007723. The next prime is 42007741. The reversal of 42007733 is 33770024.

42007733 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4761124 + 37246609 = 2182^2 + 6103^2 .

It is a cyclic number.

It is not a de Polignac number, because 42007733 - 2⁸ = 42007477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42007723) 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 3 ways as a sum of consecutive naturals, for example, 235910 + ... + 236087.

It is an arithmetic number, because the mean of its divisors is an integer number (10619955).

Almost surely, 2^42007733 is an apocalyptic number.

It is an amenable number.

42007733 is a deficient number, since it is larger than the sum of its proper divisors (472087).

42007733 is an equidigital number, since it uses as much as digits as its factorization.

42007733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472086.

The product of its (nonzero) digits is 3528, while the sum is 26.

The square root of 42007733 is about 6481.3372848510. The cubic root of 42007733 is about 347.6239966033.

Adding to 42007733 its reverse (33770024), we get a palindrome (75777757).

The spelling of 42007733 in words is "forty-two million, seven thousand, seven hundred thirty-three".