22999900 has 144 divisors (see below), whose sum is σ = 64995840. Its totient is φ = 6854400.

The previous prime is 22999877. The next prime is 22999901. The reversal of 22999900 is 999922.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22999901) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 223249 + ... + 223351.

It is an arithmetic number, because the mean of its divisors is an integer number (451360).

Almost surely, 2^22999900 is an apocalyptic number.

22999900 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 22999900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32497920).

22999900 is an abundant number, since it is smaller than the sum of its proper divisors (41995940).

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

22999900 is a wasteful number, since it uses less digits than its factorization.

22999900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 40.

The square root of 22999900 is about 4795.8210975807. The cubic root of 22999900 is about 284.3862858299.

The spelling of 22999900 in words is "twenty-two million, nine hundred ninety-nine thousand, nine hundred".