94442081 has 4 divisors (see below), whose sum is σ = 94471872. Its totient is φ = 94412292.

The previous prime is 94442059. The next prime is 94442087. The reversal of 94442081 is 18024449.

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 a de Polignac number, because none of the positive numbers 2^k-94442081 is a prime.

It is a super-2 number, since 2×94442081² = 17838613327221122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (94442087) 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, 9485 + ... + 16698.

It is an arithmetic number, because the mean of its divisors is an integer number (23617968).

Almost surely, 2^94442081 is an apocalyptic number.

It is an amenable number.

94442081 is a deficient number, since it is larger than the sum of its proper divisors (29791).

94442081 is a wasteful number, since it uses less digits than its factorization.

94442081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29790.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 94442081 is about 9718.1315591013. The cubic root of 94442081 is about 455.3952705748.

The spelling of 94442081 in words is "ninety-four million, four hundred forty-two thousand, eighty-one".