45342642 has 16 divisors (see below), whose sum is σ = 92172672. Its totient is φ = 14866320.

The previous prime is 45342623. The next prime is 45342643. The reversal of 45342642 is 24624354.

It is not an unprimeable number, because it can be changed into a prime (45342643) 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, 61578 + ... + 62309.

It is an arithmetic number, because the mean of its divisors is an integer number (5760792).

Almost surely, 2^45342642 is an apocalyptic number.

45342642 is an abundant number, since it is smaller than the sum of its proper divisors (46830030).

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

45342642 is a wasteful number, since it uses less digits than its factorization.

45342642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123953.

The product of its digits is 23040, while the sum is 30.

The square root of 45342642 is about 6733.6945282660. The cubic root of 45342642 is about 356.5898199168.

Adding to 45342642 its reverse (24624354), we get a palindrome (69966996).

The spelling of 45342642 in words is "forty-five million, three hundred forty-two thousand, six hundred forty-two".