45221330 has 96 divisors (see below), whose sum is σ = 108017280. Its totient is φ = 13305600.

The previous prime is 45221299. The next prime is 45221347. The reversal of 45221330 is 3312254.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 160790 + ... + 161070.

It is an arithmetic number, because the mean of its divisors is an integer number (1125180).

Almost surely, 2^45221330 is an apocalyptic number.

45221330 is an abundant number, since it is smaller than the sum of its proper divisors (62795950).

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

45221330 is a wasteful number, since it uses less digits than its factorization.

45221330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 45221330 is about 6724.6806615630. The cubic root of 45221330 is about 356.2715230661.

Adding to 45221330 its reverse (3312254), we get a palindrome (48533584).

The spelling of 45221330 in words is "forty-five million, two hundred twenty-one thousand, three hundred thirty".