45243330 has 64 divisors (see below), whose sum is σ = 120185856. Its totient is φ = 10808000.

The previous prime is 45243293. The next prime is 45243343. The reversal of 45243330 is 3334254.

45243330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 45243330.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 22465 + ... + 24395.

It is an arithmetic number, because the mean of its divisors is an integer number (1877904).

Almost surely, 2^45243330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45243330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60092928).

45243330 is an abundant number, since it is smaller than the sum of its proper divisors (74942526).

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

45243330 is a wasteful number, since it uses less digits than its factorization.

45243330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2023.

The product of its (nonzero) digits is 4320, while the sum is 24.

The square root of 45243330 is about 6726.3162280702. The cubic root of 45243330 is about 356.3292885999.

Adding to 45243330 its reverse (3334254), we get a palindrome (48577584).

The spelling of 45243330 in words is "forty-five million, two hundred forty-three thousand, three hundred thirty".