45421042 has 32 divisors (see below), whose sum is σ = 74262528. Its totient is φ = 20756736.

The previous prime is 45421037. The next prime is 45421049. The reversal of 45421042 is 24012454.

It is a happy number.

45421042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (45421049) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 289228 + ... + 289384.

It is an arithmetic number, because the mean of its divisors is an integer number (2320704).

Almost surely, 2^45421042 is an apocalyptic number.

45421042 is a deficient number, since it is larger than the sum of its proper divisors (28841486).

45421042 is a wasteful number, since it uses less digits than its factorization.

45421042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 45421042 is about 6739.5134839245. The cubic root of 45421042 is about 356.7952229196.

Adding to 45421042 its reverse (24012454), we get a palindrome (69433496).

The spelling of 45421042 in words is "forty-five million, four hundred twenty-one thousand, forty-two".