2217240389 has 8 divisors (see below), whose sum is σ = 2728911360. Its totient is φ = 1754300016.

The previous prime is 2217240379. The next prime is 2217240401. The reversal of 2217240389 is 9830427122.

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

It is not a de Polignac number, because 2217240389 - 2²⁸ = 1948804933 is a prime.

It is a super-2 number, since 2×2217240389² = 9832309885225742642, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2217240329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12182549 + ... + 12182730.

It is an arithmetic number, because the mean of its divisors is an integer number (341113920).

Almost surely, 2^2217240389 is an apocalyptic number.

It is an amenable number.

2217240389 is a deficient number, since it is larger than the sum of its proper divisors (511670971).

2217240389 is a wasteful number, since it uses less digits than its factorization.

2217240389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24365299.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 2217240389 is about 47087.5821103611. The cubic root of 2217240389 is about 1303.9799898836.

The spelling of 2217240389 in words is "two billion, two hundred seventeen million, two hundred forty thousand, three hundred eighty-nine".