42299745 has 16 divisors (see below), whose sum is σ = 69254592. Its totient is φ = 22034880.

The previous prime is 42299743. The next prime is 42299749. The reversal of 42299745 is 54799224.

It is not a de Polignac number, because 42299745 - 2¹ = 42299743 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42299697 and 42299706.

It is not an unprimeable number, because it can be changed into a prime (42299743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32146 + ... + 33435.

It is an arithmetic number, because the mean of its divisors is an integer number (4328412).

Almost surely, 2^42299745 is an apocalyptic number.

It is an amenable number.

42299745 is a deficient number, since it is larger than the sum of its proper divisors (26954847).

42299745 is a wasteful number, since it uses less digits than its factorization.

42299745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65632.

The product of its digits is 181440, while the sum is 42.

The square root of 42299745 is about 6503.8254127859. The cubic root of 42299745 is about 348.4276269733.

The spelling of 42299745 in words is "forty-two million, two hundred ninety-nine thousand, seven hundred forty-five".