22387033 has 4 divisors (see below), whose sum is σ = 22550580. Its totient is φ = 22223488.

The previous prime is 22387031. The next prime is 22387049. The reversal of 22387033 is 33078322.

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 6411024 + 15976009 = 2532^2 + 3997^2 .

It is a cyclic number.

It is not a de Polignac number, because 22387033 - 2¹ = 22387031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22386992 and 22387010.

It is not an unprimeable number, because it can be changed into a prime (22387031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81568 + ... + 81841.

It is an arithmetic number, because the mean of its divisors is an integer number (5637645).

Almost surely, 2^22387033 is an apocalyptic number.

It is an amenable number.

22387033 is a deficient number, since it is larger than the sum of its proper divisors (163547).

22387033 is a wasteful number, since it uses less digits than its factorization.

22387033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163546.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 22387033 is about 4731.4937387679. The cubic root of 22387033 is about 281.8375445436.

The spelling of 22387033 in words is "twenty-two million, three hundred eighty-seven thousand, thirty-three".