2393872866 has 160 divisors (see below), whose sum is σ = 6844704768. Its totient is φ = 607188960.

The previous prime is 2393872861. The next prime is 2393872891. The reversal of 2393872866 is 6682783932.

It is a happy number.

2393872866 is a `hidden beast` number, since 239 + 387 + 28 + 6 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (2393872861) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 534151 + ... + 538613.

Almost surely, 2^2393872866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2393872866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3422352384).

2393872866 is an abundant number, since it is smaller than the sum of its proper divisors (4450831902).

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

2393872866 is a wasteful number, since it uses less digits than its factorization.

2393872866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4538 (or 4529 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The square root of 2393872866 is about 48927.2200927050. The cubic root of 2393872866 is about 1337.7255665916.

The spelling of 2393872866 in words is "two billion, three hundred ninety-three million, eight hundred seventy-two thousand, eight hundred sixty-six".