2144926836 has 72 divisors (see below), whose sum is σ = 5909423520. Its totient is φ = 652014144.

The previous prime is 2144926829. The next prime is 2144926841. The reversal of 2144926836 is 6386294412.

It is a super-2 number, since 2×2144926836² = 9201422263585941792, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2144926791 and 2144926800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11235 + ... + 66453.

Almost surely, 2^2144926836 is an apocalyptic number.

2144926836 is a gapful number since it is divisible by the number (26) 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 2144926836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2954711760).

2144926836 is an abundant number, since it is smaller than the sum of its proper divisors (3764496684).

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

2144926836 is a wasteful number, since it uses less digits than its factorization.

2144926836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55325 (or 55320 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 2144926836 is about 46313.3548342160. The cubic root of 2144926836 is about 1289.6469269891.

The spelling of 2144926836 in words is "two billion, one hundred forty-four million, nine hundred twenty-six thousand, eight hundred thirty-six".