42307811 has 16 divisors (see below), whose sum is σ = 52618944. Its totient is φ = 33122304.

The previous prime is 42307799. The next prime is 42307817. The reversal of 42307811 is 11870324.

It is a cyclic number.

It is not a de Polignac number, because 42307811 - 2¹⁸ = 42045667 is a prime.

It is a super-2 number, since 2×42307811² = 3579901743223442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42307817) 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, 6431 + ... + 11223.

It is an arithmetic number, because the mean of its divisors is an integer number (3288684).

Almost surely, 2^42307811 is an apocalyptic number.

42307811 is a deficient number, since it is larger than the sum of its proper divisors (10311133).

42307811 is a wasteful number, since it uses less digits than its factorization.

42307811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4910.

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

The square root of 42307811 is about 6504.4454798238. The cubic root of 42307811 is about 348.4497724072.

The spelling of 42307811 in words is "forty-two million, three hundred seven thousand, eight hundred eleven".