4040922721 has 8 divisors (see below), whose sum is σ = 4510797984. Its totient is φ = 3588133920.

The previous prime is 4040922701. The next prime is 4040922737. The reversal of 4040922721 is 1272290404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4040922721 - 2¹¹ = 4040920673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4040922701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4271116 + ... + 4272061.

It is an arithmetic number, because the mean of its divisors is an integer number (563849748).

Almost surely, 2^4040922721 is an apocalyptic number.

It is an amenable number.

4040922721 is a deficient number, since it is larger than the sum of its proper divisors (469875263).

4040922721 is a wasteful number, since it uses less digits than its factorization.

4040922721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8543231.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 4040922721 is about 63568.2524614292. The cubic root of 4040922721 is about 1592.7960928017.

The spelling of 4040922721 in words is "four billion, forty million, nine hundred twenty-two thousand, seven hundred twenty-one".