22052388 has 36 divisors (see below), whose sum is σ = 54338480. Its totient is φ = 6941520.

The previous prime is 22052347. The next prime is 22052431. The reversal of 22052388 is 88325022.

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 11 ways as a sum of consecutive naturals, for example, 70753 + ... + 71063.

Almost surely, 2^22052388 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22052388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27169240).

22052388 is an abundant number, since it is smaller than the sum of its proper divisors (32286092).

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

22052388 is a wasteful number, since it uses less digits than its factorization.

22052388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 22052388 is about 4695.9970187384. The cubic root of 22052388 is about 280.4261707506.

The spelling of 22052388 in words is "twenty-two million, fifty-two thousand, three hundred eighty-eight".