22540030 has 16 divisors (see below), whose sum is σ = 41669280. Its totient is φ = 8772192.

The previous prime is 22540027. The next prime is 22540031. The reversal of 22540030 is 3004522.

It is a junction number, because it is equal to n+sod(n) for n = 22539986 and 22540013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22540031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30090 + ... + 30829.

It is an arithmetic number, because the mean of its divisors is an integer number (2604330).

Almost surely, 2^22540030 is an apocalyptic number.

22540030 is a deficient number, since it is larger than the sum of its proper divisors (19129250).

22540030 is a wasteful number, since it uses less digits than its factorization.

22540030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60963.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 22540030 is about 4747.6341476571. The cubic root of 22540030 is about 282.4781302411.

Adding to 22540030 its reverse (3004522), we get a palindrome (25544552).

The spelling of 22540030 in words is "twenty-two million, five hundred forty thousand, thirty".