22541000 has 32 divisors (see below), whose sum is σ = 52748280. Its totient is φ = 9016000.

The previous prime is 22540993. The next prime is 22541003. The reversal of 22541000 is 14522.

It can be written as a sum of positive squares in 4 ways, for example, as 10023556 + 12517444 = 3166^2 + 3538^2 .

It is not an unprimeable number, because it can be changed into a prime (22541003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10271 + ... + 12270.

Almost surely, 2^22541000 is an apocalyptic number.

22541000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22541000 is an abundant number, since it is smaller than the sum of its proper divisors (30207280).

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

22541000 is a wasteful number, since it uses less digits than its factorization.

22541000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22562 (or 22548 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 22541000 is about 4747.7363027026. The cubic root of 22541000 is about 282.4821822892.

Adding to 22541000 its reverse (14522), we get a palindrome (22555522).

The spelling of 22541000 in words is "twenty-two million, five hundred forty-one thousand".