2218462945 has 16 divisors (see below), whose sum is σ = 2719468800. Its totient is φ = 1736856000.

The previous prime is 2218462921. The next prime is 2218462949. The reversal of 2218462945 is 5492648122.

It is not a de Polignac number, because 2218462945 - 2⁵ = 2218462913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2218462949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42420 + ... + 78970.

It is an arithmetic number, because the mean of its divisors is an integer number (169966800).

Almost surely, 2^2218462945 is an apocalyptic number.

It is an amenable number.

2218462945 is a deficient number, since it is larger than the sum of its proper divisors (501005855).

2218462945 is a wasteful number, since it uses less digits than its factorization.

2218462945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36816.

The product of its digits is 276480, while the sum is 43.

The square root of 2218462945 is about 47100.5620454788. The cubic root of 2218462945 is about 1304.2196114200.

The spelling of 2218462945 in words is "two billion, two hundred eighteen million, four hundred sixty-two thousand, nine hundred forty-five".