22730002 has 4 divisors (see below), whose sum is σ = 34095006. Its totient is φ = 11365000.

The previous prime is 22729991. The next prime is 22730009. The reversal of 22730002 is 20003722.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20003722 = 2 ⋅10001861.

It can be written as a sum of positive squares in only one way, i.e., 22268961 + 461041 = 4719^2 + 679^2 .

It is not an unprimeable number, because it can be changed into a prime (22730009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5682499 + ... + 5682502.

Almost surely, 2^22730002 is an apocalyptic number.

22730002 is a deficient number, since it is larger than the sum of its proper divisors (11365004).

22730002 is a wasteful number, since it uses less digits than its factorization.

22730002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11365003.

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 22730002 is about 4767.5991861733. The cubic root of 22730002 is about 283.2695056531.

Adding to 22730002 its reverse (20003722), we get a palindrome (42733724).

The spelling of 22730002 in words is "twenty-two million, seven hundred thirty thousand, two".