22993620 has 96 divisors (see below), whose sum is σ = 71124480. Its totient is φ = 5514240.

The previous prime is 22993609. The next prime is 22993627. The reversal of 22993620 is 2639922.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22993627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31621 + ... + 32339.

It is an arithmetic number, because the mean of its divisors is an integer number (740880).

Almost surely, 2^22993620 is an apocalyptic number.

22993620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22993620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35562240).

22993620 is an abundant number, since it is smaller than the sum of its proper divisors (48130860).

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

22993620 is a wasteful number, since it uses less digits than its factorization.

22993620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785 (or 783 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 22993620 is about 4795.1663161980. The cubic root of 22993620 is about 284.3604000877.

The spelling of 22993620 in words is "twenty-two million, nine hundred ninety-three thousand, six hundred twenty".