8940440451 has 16 divisors (see below), whose sum is σ = 12288712320. Its totient is φ = 5778999360.

The previous prime is 8940440429. The next prime is 8940440461. The reversal of 8940440451 is 1540440498.

It is not a de Polignac number, because 8940440451 - 2⁶ = 8940440387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8940440461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 333045 + ... + 358886.

It is an arithmetic number, because the mean of its divisors is an integer number (768044520).

Almost surely, 2^8940440451 is an apocalyptic number.

8940440451 is a deficient number, since it is larger than the sum of its proper divisors (3348271869).

8940440451 is a wasteful number, since it uses less digits than its factorization.

8940440451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692066.

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 8940440451 is about 94553.9023573327. The cubic root of 8940440451 is about 2075.4851878241.

The spelling of 8940440451 in words is "eight billion, nine hundred forty million, four hundred forty thousand, four hundred fifty-one".