2945894 has 8 divisors (see below), whose sum is σ = 5050128. Its totient is φ = 1262520.

The previous prime is 2945869. The next prime is 2945933. The reversal of 2945894 is 4985492.

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

It is an Ulam number.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105197 + ... + 105224.

It is an arithmetic number, because the mean of its divisors is an integer number (631266).

2^2945894 is an apocalyptic number.

2945894 is a deficient number, since it is larger than the sum of its proper divisors (2104234).

2945894 is a wasteful number, since it uses less digits than its factorization.

2945894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210430.

The product of its digits is 103680, while the sum is 41.

The square root of 2945894 is about 1716.3606847047. The cubic root of 2945894 is about 143.3526432731.

The spelling of 2945894 in words is "two million, nine hundred forty-five thousand, eight hundred ninety-four".