45045578 has 8 divisors (see below), whose sum is σ = 67973472. Its totient is φ = 22387756.

The previous prime is 45045577. The next prime is 45045589. The reversal of 45045578 is 87554054.

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 (45045571) 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, 67100 + ... + 67767.

It is an arithmetic number, because the mean of its divisors is an integer number (8496684).

Almost surely, 2^45045578 is an apocalyptic number.

45045578 is a deficient number, since it is larger than the sum of its proper divisors (22927894).

45045578 is a wasteful number, since it uses less digits than its factorization.

45045578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135036.

The product of its (nonzero) digits is 112000, while the sum is 38.

The square root of 45045578 is about 6711.6002562727. The cubic root of 45045578 is about 355.8093759164.

The spelling of 45045578 in words is "forty-five million, forty-five thousand, five hundred seventy-eight".