2218972386 has 32 divisors (see below), whose sum is σ = 4549366080. Its totient is φ = 721315584.

The previous prime is 2218972339. The next prime is 2218972433. The reversal of 2218972386 is 6832798122.

It is an interprime number because it is at equal distance from previous prime (2218972339) and next prime (2218972433).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10521 + ... + 67443.

It is an arithmetic number, because the mean of its divisors is an integer number (142167690).

Almost surely, 2^2218972386 is an apocalyptic number.

2218972386 is an abundant number, since it is smaller than the sum of its proper divisors (2330393694).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2218972386 is a wasteful number, since it uses less digits than its factorization.

2218972386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57090.

The product of its digits is 580608, while the sum is 48.

The square root of 2218972386 is about 47105.9697490668. The cubic root of 2218972386 is about 1304.3194361045.

The spelling of 2218972386 in words is "two billion, two hundred eighteen million, nine hundred seventy-two thousand, three hundred eighty-six".