42304081 has 4 divisors (see below), whose sum is σ = 42637312. Its totient is φ = 41970852.

The previous prime is 42304079. The next prime is 42304147. The reversal of 42304081 is 18040324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42304081 - 2¹ = 42304079 is a prime.

It is a super-2 number, since 2×42304081² = 3579270538509122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42302081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166425 + ... + 166678.

It is an arithmetic number, because the mean of its divisors is an integer number (10659328).

Almost surely, 2^42304081 is an apocalyptic number.

It is an amenable number.

42304081 is a deficient number, since it is larger than the sum of its proper divisors (333231).

42304081 is a wasteful number, since it uses less digits than its factorization.

42304081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333230.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 42304081 is about 6504.1587465252. The cubic root of 42304081 is about 348.4395319353.

The spelling of 42304081 in words is "forty-two million, three hundred four thousand, eighty-one".