45445448 has 8 divisors (see below), whose sum is σ = 85210230. Its totient is φ = 22722720.

The previous prime is 45445441. The next prime is 45445459. The reversal of 45445448 is 84454454.

It can be written as a sum of positive squares in only one way, i.e., 36457444 + 8988004 = 6038^2 + 2998^2 .

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 (45445441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2840333 + ... + 2840348.

Almost surely, 2^45445448 is an apocalyptic number.

It is an amenable number.

45445448 is a deficient number, since it is larger than the sum of its proper divisors (39764782).

45445448 is a wasteful number, since it uses less digits than its factorization.

45445448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5680687 (or 5680683 counting only the distinct ones).

The product of its digits is 204800, while the sum is 38.

The square root of 45445448 is about 6741.3239055841. The cubic root of 45445448 is about 356.8591168376.

The spelling of 45445448 in words is "forty-five million, four hundred forty-five thousand, four hundred forty-eight".