45440008 has 8 divisors (see below), whose sum is σ = 85200030. Its totient is φ = 22720000.

The previous prime is 45439987. The next prime is 45440009. The reversal of 45440008 is 80004454.

It can be written as a sum of positive squares in only one way, i.e., 40678884 + 4761124 = 6378^2 + 2182^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (45440009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2839993 + ... + 2840008.

Almost surely, 2^45440008 is an apocalyptic number.

It is an amenable number.

45440008 is a deficient number, since it is larger than the sum of its proper divisors (39760022).

45440008 is a wasteful number, since it uses less digits than its factorization.

45440008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5680007 (or 5680003 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 45440008 is about 6740.9204119319. The cubic root of 45440008 is about 356.8448771199.

The spelling of 45440008 in words is "forty-five million, four hundred forty thousand, eight".