2945618 has 16 divisors (see below), whose sum is σ = 4787160. Its totient is φ = 1351296.

The previous prime is 2945611. The next prime is 2945639. The reversal of 2945618 is 8165492.

2945618 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2211169 + 734449 = 1487^2 + 857^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (2945611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is an upside-down number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6998 + ... + 7406.

2^2945618 is an apocalyptic number.

2945618 is a deficient number, since it is larger than the sum of its proper divisors (1841542).

2945618 is a wasteful number, since it uses less digits than its factorization.

2945618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701.

The product of its digits is 17280, while the sum is 35.

The square root of 2945618 is about 1716.2802801407. The cubic root of 2945618 is about 143.3481662433.

The spelling of 2945618 in words is "two million, nine hundred forty-five thousand, six hundred eighteen".