42311807 has 4 divisors (see below), whose sum is σ = 43676736. Its totient is φ = 40946880.

The previous prime is 42311779. The next prime is 42311809. The reversal of 42311807 is 70811324.

42311807 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 is a cyclic number.

It is not a de Polignac number, because 42311807 - 2¹⁶ = 42246271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42311809) 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, 682418 + ... + 682479.

It is an arithmetic number, because the mean of its divisors is an integer number (10919184).

Almost surely, 2^42311807 is an apocalyptic number.

42311807 is a deficient number, since it is larger than the sum of its proper divisors (1364929).

42311807 is a wasteful number, since it uses less digits than its factorization.

42311807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364928.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 42311807 is about 6504.7526471035. The cubic root of 42311807 is about 348.4607424970.

The spelling of 42311807 in words is "forty-two million, three hundred eleven thousand, eight hundred seven".