45545442 has 16 divisors (see below), whose sum is σ = 91484640. Its totient is φ = 15116192.

The previous prime is 45545429. The next prime is 45545443. The reversal of 45545442 is 24454554.

It is not an unprimeable number, because it can be changed into a prime (45545443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14892 + ... + 17687.

It is an arithmetic number, because the mean of its divisors is an integer number (5717790).

Almost surely, 2^45545442 is an apocalyptic number.

45545442 is an abundant number, since it is smaller than the sum of its proper divisors (45939198).

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

45545442 is a wasteful number, since it uses less digits than its factorization.

45545442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32817.

The product of its digits is 64000, while the sum is 33.

The square root of 45545442 is about 6748.7363261577. The cubic root of 45545442 is about 357.1206584755.

Adding to 45545442 its reverse (24454554), we get a palindrome (69999996).

The spelling of 45545442 in words is "forty-five million, five hundred forty-five thousand, four hundred forty-two".