22293306 has 48 divisors (see below), whose sum is σ = 57255744. Its totient is φ = 6368544.

The previous prime is 22293301. The next prime is 22293317. The reversal of 22293306 is 60339222.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 22293306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22293301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 126 + ... + 6678.

It is an arithmetic number, because the mean of its divisors is an integer number (1192828).

Almost surely, 2^22293306 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22293306, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28627872).

22293306 is an abundant number, since it is smaller than the sum of its proper divisors (34962438).

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

22293306 is an equidigital number, since it uses as much as digits as its factorization.

22293306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6577 (or 6565 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 22293306 is about 4721.5787613890. The cubic root of 22293306 is about 281.4436746010.

It can be divided in two parts, 222 and 93306, that added together give a triangular number (93528 = T₄₃₂).

The spelling of 22293306 in words is "twenty-two million, two hundred ninety-three thousand, three hundred six".