45447490 has 16 divisors (see below), whose sum is σ = 89242560. Its totient is φ = 16526320.

The previous prime is 45447469. The next prime is 45447491. The reversal of 45447490 is 9474454.

It is a happy number.

45447490 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 (45447491) 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 7 ways as a sum of consecutive naturals, for example, 206470 + ... + 206689.

It is an arithmetic number, because the mean of its divisors is an integer number (5577660).

Almost surely, 2^45447490 is an apocalyptic number.

45447490 is a deficient number, since it is larger than the sum of its proper divisors (43795070).

45447490 is a wasteful number, since it uses less digits than its factorization.

45447490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413177.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 45447490 is about 6741.4753578130. The cubic root of 45447490 is about 356.8644616737.

The spelling of 45447490 in words is "forty-five million, four hundred forty-seven thousand, four hundred ninety".