2666939244 has 24 divisors (see below), whose sum is σ = 6223695408. Its totient is φ = 888860160.

The previous prime is 2666939213. The next prime is 2666939257. The reversal of 2666939244 is 4429396662.

It is a happy number.

It is a super-2 number, since 2×2666939244² = 14225129862374583072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158064 + ... + 174120.

It is an arithmetic number, because the mean of its divisors is an integer number (259320642).

Almost surely, 2^2666939244 is an apocalyptic number.

It is an amenable number.

2666939244 is an abundant number, since it is smaller than the sum of its proper divisors (3556756164).

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

2666939244 is a wasteful number, since it uses less digits than its factorization.

2666939244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29905 (or 29903 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 51.

The square root of 2666939244 is about 51642.4171006741. The cubic root of 2666939244 is about 1386.7697957333.

The spelling of 2666939244 in words is "two billion, six hundred sixty-six million, nine hundred thirty-nine thousand, two hundred forty-four".