40530222 has 24 divisors (see below), whose sum is σ = 89958960. Its totient is φ = 13180320.

The previous prime is 40530199. The next prime is 40530223. The reversal of 40530222 is 22203504.

40530222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 40530195 and 40530204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40530223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26722 + ... + 28197.

It is an arithmetic number, because the mean of its divisors is an integer number (3748290).

Almost surely, 2^40530222 is an apocalyptic number.

40530222 is an abundant number, since it is smaller than the sum of its proper divisors (49428738).

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

40530222 is a wasteful number, since it uses less digits than its factorization.

40530222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54968 (or 54965 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 40530222 is about 6366.3350524458. The cubic root of 40530222 is about 343.4996726477.

Adding to 40530222 its reverse (22203504), we get a palindrome (62733726).

The spelling of 40530222 in words is "forty million, five hundred thirty thousand, two hundred twenty-two".