45018222 has 16 divisors (see below), whose sum is σ = 93951360. Its totient is φ = 14353592.

The previous prime is 45018209. The next prime is 45018251. The reversal of 45018222 is 22281054.

It is a junction number, because it is equal to n+sod(n) for n = 45018192 and 45018201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162972 + ... + 163247.

It is an arithmetic number, because the mean of its divisors is an integer number (5871960).

Almost surely, 2^45018222 is an apocalyptic number.

45018222 is an abundant number, since it is smaller than the sum of its proper divisors (48933138).

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

45018222 is a wasteful number, since it uses less digits than its factorization.

45018222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326247.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 45018222 is about 6709.5619827229. The cubic root of 45018222 is about 355.7373341256.

Adding to 45018222 its reverse (22281054), we get a palindrome (67299276).

The spelling of 45018222 in words is "forty-five million, eighteen thousand, two hundred twenty-two".