45423444 has 24 divisors (see below), whose sum is σ = 115623648. Its totient is φ = 13764640.

The previous prime is 45423431. The next prime is 45423527. The reversal of 45423444 is 44432454.

45423444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×45423444³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 171927 + ... + 172190.

It is an arithmetic number, because the mean of its divisors is an integer number (4817652).

Almost surely, 2^45423444 is an apocalyptic number.

45423444 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

45423444 is an abundant number, since it is smaller than the sum of its proper divisors (70200204).

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

45423444 is a wasteful number, since it uses less digits than its factorization.

45423444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344135 (or 344133 counting only the distinct ones).

The product of its digits is 30720, while the sum is 30.

The square root of 45423444 is about 6739.6916843428. The cubic root of 45423444 is about 356.8015122735.

Adding to 45423444 its reverse (44432454), we get a palindrome (89855898).

The spelling of 45423444 in words is "forty-five million, four hundred twenty-three thousand, four hundred forty-four".