4545778 has 16 divisors (see below), whose sum is σ = 7098624. Its totient is φ = 2180880.

The previous prime is 4545767. The next prime is 4545799. The reversal of 4545778 is 8775454.

It is a self number, because there is not a number n which added to its sum of digits gives 4545778.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9501 + ... + 9967.

It is an arithmetic number, because the mean of its divisors is an integer number (443664).

Almost surely, 2^4545778 is an apocalyptic number.

4545778 is a deficient number, since it is larger than the sum of its proper divisors (2552846).

4545778 is a wasteful number, since it uses less digits than its factorization.

4545778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657.

The product of its digits is 156800, while the sum is 40.

The square root of 4545778 is about 2132.0830190215. The cubic root of 4545778 is about 165.6543103698.

The spelling of 4545778 in words is "four million, five hundred forty-five thousand, seven hundred seventy-eight".