3022388721 has 40 divisors (see below), whose sum is σ = 5030239104. Its totient is φ = 1792752480.

The previous prime is 3022388713. The next prime is 3022388723. The reversal of 3022388721 is 1278832203.

It is a happy number.

It is not a de Polignac number, because 3022388721 - 2³ = 3022388713 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3022388723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5791 + ... + 77963.

Almost surely, 2^3022388721 is an apocalyptic number.

It is an amenable number.

3022388721 is a deficient number, since it is larger than the sum of its proper divisors (2007850383).

3022388721 is a wasteful number, since it uses less digits than its factorization.

3022388721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72243 (or 72234 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 3022388721 is about 54976.2559747388. The cubic root of 3022388721 is about 1445.8284734817.

The spelling of 3022388721 in words is "three billion, twenty-two million, three hundred eighty-eight thousand, seven hundred twenty-one".