22784073 has 12 divisors (see below), whose sum is σ = 32896080. Its totient is φ = 14020656.

The previous prime is 22784071. The next prime is 22784093. The reversal of 22784073 is 37048722.

It is not a de Polignac number, because 22784073 - 2¹ = 22784071 is a prime.

It is a super-2 number, since 2×22784073² = 1038227964938658, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22784071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21963 + ... + 22976.

It is an arithmetic number, because the mean of its divisors is an integer number (2741340).

Almost surely, 2^22784073 is an apocalyptic number.

It is an amenable number.

22784073 is a deficient number, since it is larger than the sum of its proper divisors (10112007).

22784073 is a wasteful number, since it uses less digits than its factorization.

22784073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44968 (or 44955 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 22784073 is about 4773.2664916177. The cubic root of 22784073 is about 283.4939452312.

The spelling of 22784073 in words is "twenty-two million, seven hundred eighty-four thousand, seventy-three".