22541140 has 48 divisors (see below), whose sum is σ = 49335552. Its totient is φ = 8643456.

The previous prime is 22541137. The next prime is 22541143. The reversal of 22541140 is 4114522.

It is an interprime number because it is at equal distance from previous prime (22541137) and next prime (22541143).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22541143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61237 + ... + 61603.

It is an arithmetic number, because the mean of its divisors is an integer number (1027824).

Almost surely, 2^22541140 is an apocalyptic number.

22541140 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 22541140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24667776).

22541140 is an abundant number, since it is smaller than the sum of its proper divisors (26794412).

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

22541140 is a wasteful number, since it uses less digits than its factorization.

22541140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496 (or 494 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 22541140 is about 4747.7510465482. The cubic root of 22541140 is about 282.4827671113.

Adding to 22541140 its reverse (4114522), we get a palindrome (26655662).

The spelling of 22541140 in words is "twenty-two million, five hundred forty-one thousand, one hundred forty".