45394666 has 8 divisors (see below), whose sum is σ = 68526180. Its totient is φ = 22552608.

The previous prime is 45394651. The next prime is 45394669. The reversal of 45394666 is 66649354.

It can be written as a sum of positive squares in 2 ways, for example, as 42575625 + 2819041 = 6525^2 + 1679^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (45394669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71971 + ... + 72598.

Almost surely, 2^45394666 is an apocalyptic number.

45394666 is a deficient number, since it is larger than the sum of its proper divisors (23131514).

45394666 is a wasteful number, since it uses less digits than its factorization.

45394666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144728.

The product of its digits is 466560, while the sum is 43.

The square root of 45394666 is about 6737.5563819533. The cubic root of 45394666 is about 356.7261458825.

The spelling of 45394666 in words is "forty-five million, three hundred ninety-four thousand, six hundred sixty-six".