45221178 has 64 divisors (see below), whose sum is σ = 99809280. Its totient is φ = 13608000.

The previous prime is 45221177. The next prime is 45221201. The reversal of 45221178 is 87112254.

It is not an unprimeable number, because it can be changed into a prime (45221177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 299403 + ... + 299553.

It is an arithmetic number, because the mean of its divisors is an integer number (1559520).

Almost surely, 2^45221178 is an apocalyptic number.

45221178 is an abundant number, since it is smaller than the sum of its proper divisors (54588102).

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

45221178 is a wasteful number, since it uses less digits than its factorization.

45221178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283.

The product of its digits is 4480, while the sum is 30.

The square root of 45221178 is about 6724.6693599016. The cubic root of 45221178 is about 356.2711238936.

The spelling of 45221178 in words is "forty-five million, two hundred twenty-one thousand, one hundred seventy-eight".