22233140 has 24 divisors (see below), whose sum is σ = 48300840. Its totient is φ = 8586368.

The previous prime is 22233139. The next prime is 22233143. The reversal of 22233140 is 4133222.

It can be written as a sum of positive squares in 4 ways, for example, as 3794704 + 18438436 = 1948^2 + 4294^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22233143) 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, 18587 + ... + 19746.

It is an arithmetic number, because the mean of its divisors is an integer number (2012535).

Almost surely, 2^22233140 is an apocalyptic number.

22233140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22233140 is an abundant number, since it is smaller than the sum of its proper divisors (26067700).

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

22233140 is a wasteful number, since it uses less digits than its factorization.

22233140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38371 (or 38369 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 22233140 is about 4715.2030709186. The cubic root of 22233140 is about 281.1902562812.

Adding to 22233140 its reverse (4133222), we get a palindrome (26366362).

The spelling of 22233140 in words is "twenty-two million, two hundred thirty-three thousand, one hundred forty".