2266326821 has 32 divisors (see below), whose sum is σ = 2661120000. Its totient is φ = 1908264960.

The previous prime is 2266326817. The next prime is 2266326833. The reversal of 2266326821 is 1286236622.

It is a cyclic number.

It is not a de Polignac number, because 2266326821 - 2² = 2266326817 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2266326841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2946725 + ... + 2947493.

It is an arithmetic number, because the mean of its divisors is an integer number (83160000).

Almost surely, 2^2266326821 is an apocalyptic number.

It is an amenable number.

2266326821 is a deficient number, since it is larger than the sum of its proper divisors (394793179).

2266326821 is a wasteful number, since it uses less digits than its factorization.

2266326821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097.

The product of its digits is 82944, while the sum is 38.

The square root of 2266326821 is about 47605.9536297720. The cubic root of 2266326821 is about 1313.5325707952.

The spelling of 2266326821 in words is "two billion, two hundred sixty-six million, three hundred twenty-six thousand, eight hundred twenty-one".