22331330 has 32 divisors (see below), whose sum is σ = 46151424. Its totient is φ = 7621056.

The previous prime is 22331303. The next prime is 22331333. The reversal of 22331330 is 3313322.

It is a junction number, because it is equal to n+sod(n) for n = 22331299 and 22331308.

It is not an unprimeable number, because it can be changed into a prime (22331333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17804 + ... + 19016.

It is an arithmetic number, because the mean of its divisors is an integer number (1442232).

Almost surely, 2^22331330 is an apocalyptic number.

22331330 is an abundant number, since it is smaller than the sum of its proper divisors (23820094).

22331330 is a wasteful number, since it uses less digits than its factorization.

22331330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490.

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 22331330 is about 4725.6036651416. The cubic root of 22331330 is about 281.6035960850.

Adding to 22331330 its reverse (3313322), we get a palindrome (25644652).

It can be divided in two parts, 2 and 2331330, that added together give a palindrome (2331332).

The spelling of 22331330 in words is "twenty-two million, three hundred thirty-one thousand, three hundred thirty".