42383081 has 4 divisors (see below), whose sum is σ = 45643332. Its totient is φ = 39122832.

The previous prime is 42383071. The next prime is 42383087. The reversal of 42383081 is 18038324.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4141225 + 38241856 = 2035^2 + 6184^2 .

It is a cyclic number.

It is not a de Polignac number, because 42383081 - 2¹⁴ = 42366697 is a prime.

It is a super-2 number, since 2×42383081² = 3592651110105122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42383087) 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, 1630106 + ... + 1630131.

It is an arithmetic number, because the mean of its divisors is an integer number (11410833).

Almost surely, 2^42383081 is an apocalyptic number.

It is an amenable number.

42383081 is a deficient number, since it is larger than the sum of its proper divisors (3260251).

42383081 is a wasteful number, since it uses less digits than its factorization.

42383081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3260250.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 42383081 is about 6510.2289514271. The cubic root of 42383081 is about 348.6562927880.

The spelling of 42383081 in words is "forty-two million, three hundred eighty-three thousand, eighty-one".