45229218 has 8 divisors (see below), whose sum is σ = 90458448. Its totient is φ = 15076404.

The previous prime is 45229211. The next prime is 45229229. The reversal of 45229218 is 81292254.

It is a sphenic number, since it is the product of 3 distinct primes.

45229218 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (45229211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3769096 + ... + 3769107.

It is an arithmetic number, because the mean of its divisors is an integer number (11307306).

Almost surely, 2^45229218 is an apocalyptic number.

45229218 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

45229218 is a wasteful number, since it uses less digits than its factorization.

45229218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7538208.

The product of its digits is 11520, while the sum is 33.

The square root of 45229218 is about 6725.2671322409. The cubic root of 45229218 is about 356.2922367897.

The spelling of 45229218 in words is "forty-five million, two hundred twenty-nine thousand, two hundred eighteen".