22270338 has 48 divisors (see below), whose sum is σ = 50409216. Its totient is φ = 7097760.

The previous prime is 22270319. The next prime is 22270343. The reversal of 22270338 is 83307222.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59520 + ... + 59892.

It is an arithmetic number, because the mean of its divisors is an integer number (1050192).

Almost surely, 2^22270338 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22270338, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25204608).

22270338 is an abundant number, since it is smaller than the sum of its proper divisors (28138878).

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

22270338 is a wasteful number, since it uses less digits than its factorization.

22270338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519 (or 516 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 22270338 is about 4719.1458972996. The cubic root of 22270338 is about 281.3469875875.

The spelling of 22270338 in words is "twenty-two million, two hundred seventy thousand, three hundred thirty-eight".