45648478 has 4 divisors (see below), whose sum is σ = 68472720. Its totient is φ = 22824238.

The previous prime is 45648397. The next prime is 45648479. The reversal of 45648478 is 87484654.

45648478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45648479) 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 as a sum of consecutive naturals, namely, 11412118 + ... + 11412121.

It is an arithmetic number, because the mean of its divisors is an integer number (17118180).

Almost surely, 2^45648478 is an apocalyptic number.

45648478 is a deficient number, since it is larger than the sum of its proper divisors (22824242).

45648478 is a wasteful number, since it uses less digits than its factorization.

45648478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22824241.

The product of its digits is 860160, while the sum is 46.

The square root of 45648478 is about 6756.3657390642. The cubic root of 45648478 is about 357.3897565432.

The spelling of 45648478 in words is "forty-five million, six hundred forty-eight thousand, four hundred seventy-eight".