22135730 has 16 divisors (see below), whose sum is σ = 40233024. Its totient is φ = 8767920.

The previous prime is 22135723. The next prime is 22135739. The reversal of 22135730 is 3753122.

It is a junction number, because it is equal to n+sod(n) for n = 22135696 and 22135705.

It is not an unprimeable number, because it can be changed into a prime (22135739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9716 + ... + 11775.

It is an arithmetic number, because the mean of its divisors is an integer number (2514564).

Almost surely, 2^22135730 is an apocalyptic number.

22135730 is a deficient number, since it is larger than the sum of its proper divisors (18097294).

22135730 is a wasteful number, since it uses less digits than its factorization.

22135730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21601.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 22135730 is about 4704.8623784336. The cubic root of 22135730 is about 280.7789956908.

Adding to 22135730 its reverse (3753122), we get a palindrome (25888852).

The spelling of 22135730 in words is "twenty-two million, one hundred thirty-five thousand, seven hundred thirty".