22007730 has 16 divisors (see below), whose sum is σ = 52818624. Its totient is φ = 5868720.

The previous prime is 22007729. The next prime is 22007743. The reversal of 22007730 is 3770022.

It is a junction number, because it is equal to n+sod(n) for n = 22007697 and 22007706.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366766 + ... + 366825.

It is an arithmetic number, because the mean of its divisors is an integer number (3301164).

Almost surely, 2^22007730 is an apocalyptic number.

22007730 is an abundant number, since it is smaller than the sum of its proper divisors (30810894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22007730 is a wasteful number, since it uses less digits than its factorization.

22007730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733601.

The product of its (nonzero) digits is 588, while the sum is 21.

The square root of 22007730 is about 4691.2397082221. The cubic root of 22007730 is about 280.2367470469.

Adding to 22007730 its reverse (3770022), we get a palindrome (25777752).

The spelling of 22007730 in words is "twenty-two million, seven thousand, seven hundred thirty".