2666807404 has 24 divisors (see below), whose sum is σ = 5037752160. Its totient is φ = 1231448064.

The previous prime is 2666807389. The next prime is 2666807419. The reversal of 2666807404 is 4047086662.

It is an interprime number because it is at equal distance from previous prime (2666807389) and next prime (2666807419).

It is a super-4 number, since 4×2666807404⁴ (a number of 39 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

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, 497109 + ... + 502444.

It is an arithmetic number, because the mean of its divisors is an integer number (209906340).

Almost surely, 2^2666807404 is an apocalyptic number.

It is an amenable number.

2666807404 is a deficient number, since it is larger than the sum of its proper divisors (2370944756).

2666807404 is a wasteful number, since it uses less digits than its factorization.

2666807404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999609 (or 999607 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 43.

The square root of 2666807404 is about 51641.1406148238. The cubic root of 2666807404 is about 1386.7469437263.

The spelling of 2666807404 in words is "two billion, six hundred sixty-six million, eight hundred seven thousand, four hundred four".