22304700 has 144 divisors (see below), whose sum is σ = 78328320. Its totient is φ = 5400000.

The previous prime is 22304699. The next prime is 22304701. The reversal of 22304700 is 740322.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22304699) and next prime (22304701).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22304701) 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, 29325 + ... + 30075.

Almost surely, 2^22304700 is an apocalyptic number.

22304700 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 22304700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39164160).

22304700 is an abundant number, since it is smaller than the sum of its proper divisors (56023620).

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

22304700 is a wasteful number, since it uses less digits than its factorization.

22304700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785 (or 772 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 22304700 is about 4722.7851952000. The cubic root of 22304700 is about 281.4916145979.

The spelling of 22304700 in words is "twenty-two million, three hundred four thousand, seven hundred".