22097856 has 56 divisors (see below), whose sum is σ = 63788544. Its totient is φ = 6695680.

The previous prime is 22097851. The next prime is 22097879. The reversal of 22097856 is 65879022.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22097851) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3120 + ... + 7343.

Almost surely, 2^22097856 is an apocalyptic number.

It is an amenable number.

22097856 is an abundant number, since it is smaller than the sum of its proper divisors (41690688).

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

22097856 is a wasteful number, since it uses less digits than its factorization.

22097856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10489 (or 10479 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 22097856 is about 4700.8356703888. The cubic root of 22097856 is about 280.6187676422.

The spelling of 22097856 in words is "twenty-two million, ninety-seven thousand, eight hundred fifty-six".