45305442 has 96 divisors (see below), whose sum is σ = 127999872. Its totient is φ = 11238912.

The previous prime is 45305431. The next prime is 45305483. The reversal of 45305442 is 24450354.

45305442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 47 ways as a sum of consecutive naturals, for example, 27033 + ... + 28659.

It is an arithmetic number, because the mean of its divisors is an integer number (1333332).

Almost surely, 2^45305442 is an apocalyptic number.

45305442 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 45305442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63999936).

45305442 is an abundant number, since it is smaller than the sum of its proper divisors (82694430).

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

45305442 is a wasteful number, since it uses less digits than its factorization.

45305442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1672 (or 1669 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 45305442 is about 6730.9317334229. The cubic root of 45305442 is about 356.4922754566.

Adding to 45305442 its reverse (24450354), we get a palindrome (69755796).

The spelling of 45305442 in words is "forty-five million, three hundred five thousand, four hundred forty-two".