2168239104 has 110 divisors (see below), whose sum is σ = 6475033554. Its totient is φ = 722718720.

The previous prime is 2168239079. The next prime is 2168239111. The reversal of 2168239104 is 4019328612.

It can be written as a sum of positive squares in only one way, i.e., 1992729600 + 175509504 = 44640^2 + 13248^2 .

It is a super-2 number, since 2×2168239104² = 9402521624229445632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 69874 + ... + 96014.

Almost surely, 2^2168239104 is an apocalyptic number.

2168239104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2168239104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3237516777).

2168239104 is an abundant number, since it is smaller than the sum of its proper divisors (4306794450).

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

2168239104 is an equidigital number, since it uses as much as digits as its factorization.

2168239104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26173 (or 26146 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 2168239104 is about 46564.3544355551. The cubic root of 2168239104 is about 1294.3023038216.

The spelling of 2168239104 in words is "two billion, one hundred sixty-eight million, two hundred thirty-nine thousand, one hundred four".