20074881 has 8 divisors (see below), whose sum is σ = 26853280. Its totient is φ = 13339872.

The previous prime is 20074843. The next prime is 20074907. The reversal of 20074881 is 18847002.

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

It is not a de Polignac number, because 20074881 - 2¹⁰ = 20073857 is a prime.

It is a super-2 number, since 2×20074881² = 806001694328322, which contains 22 as substring.

It is the 4481-st Hogben number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20074801) by changing a digit.

It is a nontrivial repunit in base 4480.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9751 + ... + 11628.

It is an arithmetic number, because the mean of its divisors is an integer number (3356660).

Almost surely, 2^20074881 is an apocalyptic number.

It is an amenable number.

20074881 is a deficient number, since it is larger than the sum of its proper divisors (6778399).

20074881 is a wasteful number, since it uses less digits than its factorization.

20074881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21695.

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 20074881 is about 4480.5000836960. The cubic root of 20074881 is about 271.7801035964.

The spelling of 20074881 in words is "twenty million, seventy-four thousand, eight hundred eighty-one".