22740900 has 288 divisors, whose sum is σ = 87494400. Its totient is φ = 4515840.

The previous prime is 22740889. The next prime is 22740919. The reversal of 22740900 is 904722.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1337692 + ... + 1337708.

It is an arithmetic number, because the mean of its divisors is an integer number (303800).

Almost surely, 2^22740900 is an apocalyptic number.

22740900 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 22740900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43747200).

22740900 is an abundant number, since it is smaller than the sum of its proper divisors (64753500).

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

22740900 is a wasteful number, since it uses less digits than its factorization.

22740900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 22740900 is about 4768.7419724703. The cubic root of 22740900 is about 283.3147700256.

The spelling of 22740900 in words is "twenty-two million, seven hundred forty thousand, nine hundred".