45778018 has 32 divisors (see below), whose sum is σ = 81910080. Its totient is φ = 18912960.

The previous prime is 45778013. The next prime is 45778021. The reversal of 45778018 is 81087754.

It is not an unprimeable number, because it can be changed into a prime (45778013) 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 in 15 ways as a sum of consecutive naturals, for example, 17968 + ... + 20356.

It is an arithmetic number, because the mean of its divisors is an integer number (2559690).

Almost surely, 2^45778018 is an apocalyptic number.

45778018 is a deficient number, since it is larger than the sum of its proper divisors (36132062).

45778018 is a wasteful number, since it uses less digits than its factorization.

45778018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2482.

The product of its (nonzero) digits is 62720, while the sum is 40.

The square root of 45778018 is about 6765.9454623874. The cubic root of 45778018 is about 357.7275008831.

The spelling of 45778018 in words is "forty-five million, seven hundred seventy-eight thousand, eighteen".