2143377236 has 96 divisors (see below), whose sum is σ = 5105872128. Its totient is φ = 760181760.

The previous prime is 2143377227. The next prime is 2143377253. The reversal of 2143377236 is 6327733412.

It is a self number, because there is not a number n which added to its sum of digits gives 2143377236.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 288626 + ... + 295958.

It is an arithmetic number, because the mean of its divisors is an integer number (53186168).

Almost surely, 2^2143377236 is an apocalyptic number.

2143377236 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 2143377236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2552936064).

2143377236 is an abundant number, since it is smaller than the sum of its proper divisors (2962494892).

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

2143377236 is a wasteful number, since it uses less digits than its factorization.

2143377236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7441 (or 7439 counting only the distinct ones).

The product of its digits is 127008, while the sum is 38.

The square root of 2143377236 is about 46296.6222958004. The cubic root of 2143377236 is about 1289.3362841746.

The spelling of 2143377236 in words is "two billion, one hundred forty-three million, three hundred seventy-seven thousand, two hundred thirty-six".