45540222 has 32 divisors (see below), whose sum is σ = 112100352. Its totient is φ = 12010464.

The previous prime is 45540203. The next prime is 45540223. The reversal of 45540222 is 22204554.

It is a happy number.

It is a super-3 number, since 3×45540222³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45540192 and 45540201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45540223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41158 + ... + 42249.

It is an arithmetic number, because the mean of its divisors is an integer number (3503136).

Almost surely, 2^45540222 is an apocalyptic number.

45540222 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

45540222 is an abundant number, since it is smaller than the sum of its proper divisors (66560130).

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

45540222 is a wasteful number, since it uses less digits than its factorization.

45540222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83432.

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 45540222 is about 6748.3495760075. The cubic root of 45540222 is about 357.1070146582.

Adding to 45540222 its reverse (22204554), we get a palindrome (67744776).

The spelling of 45540222 in words is "forty-five million, five hundred forty thousand, two hundred twenty-two".