42069313 has 16 divisors (see below), whose sum is σ = 49896000. Its totient is φ = 34966080.

The previous prime is 42069299. The next prime is 42069319. The reversal of 42069313 is 31396024.

It is a cyclic number.

It is not a de Polignac number, because 42069313 - 2²⁵ = 8514881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42069319) 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, 14238 + ... + 16936.

It is an arithmetic number, because the mean of its divisors is an integer number (3118500).

Almost surely, 2^42069313 is an apocalyptic number.

It is an amenable number.

42069313 is a deficient number, since it is larger than the sum of its proper divisors (7826687).

42069313 is a wasteful number, since it uses less digits than its factorization.

42069313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2832.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 42069313 is about 6486.0861079699. The cubic root of 42069313 is about 347.7937767250.

Subtracting from 42069313 its reverse (31396024), we obtain a square (10673289 = 3267²).

The spelling of 42069313 in words is "forty-two million, sixty-nine thousand, three hundred thirteen".