22074181 has 8 divisors (see below), whose sum is σ = 24246720. Its totient is φ = 20002752.

The previous prime is 22074167. The next prime is 22074197. The reversal of 22074181 is 18147022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22074181 is a prime.

It is a super-2 number, since 2×22074181² = 974538933641522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22072181) 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 7 ways as a sum of consecutive naturals, for example, 24820 + ... + 25693.

It is an arithmetic number, because the mean of its divisors is an integer number (3030840).

Almost surely, 2^22074181 is an apocalyptic number.

It is an amenable number.

22074181 is a deficient number, since it is larger than the sum of its proper divisors (2172539).

22074181 is a wasteful number, since it uses less digits than its factorization.

22074181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50555.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 22074181 is about 4698.3168262687. The cubic root of 22074181 is about 280.5185162371.

The spelling of 22074181 in words is "twenty-two million, seventy-four thousand, one hundred eighty-one".