2238979643 has 16 divisors (see below), whose sum is σ = 2352947520. Its totient is φ = 2126462976.

The previous prime is 2238979637. The next prime is 2238979649. The reversal of 2238979643 is 3469798322.

2238979643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2238979637) and next prime (2238979649).

It is not a de Polignac number, because 2238979643 - 2³⁰ = 1165237819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2238979649) 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, 2911163 + ... + 2911931.

It is an arithmetic number, because the mean of its divisors is an integer number (147059220).

Almost surely, 2^2238979643 is an apocalyptic number.

2238979643 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2238979643 is a deficient number, since it is larger than the sum of its proper divisors (113967877).

2238979643 is a wasteful number, since it uses less digits than its factorization.

2238979643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526.

The product of its digits is 3919104, while the sum is 53.

The square root of 2238979643 is about 47317.8575487099. The cubic root of 2238979643 is about 1308.2278239373.

The spelling of 2238979643 in words is "two billion, two hundred thirty-eight million, nine hundred seventy-nine thousand, six hundred forty-three".