4431872890 has 8 divisors (see below), whose sum is σ = 7977371220. Its totient is φ = 1772749152.

The previous prime is 4431872881. The next prime is 4431872891. The reversal of 4431872890 is 982781344.

It can be written as a sum of positive squares in 2 ways, for example, as 4368813409 + 63059481 = 66097^2 + 7941^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 4431872890.

It is not an unprimeable number, because it can be changed into a prime (4431872891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221593635 + ... + 221593654.

Almost surely, 2^4431872890 is an apocalyptic number.

4431872890 is a deficient number, since it is larger than the sum of its proper divisors (3545498330).

4431872890 is a wasteful number, since it uses less digits than its factorization.

4431872890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443187296.

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 4431872890 is about 66572.3132390636. The cubic root of 4431872890 is about 1642.5897129802.

The spelling of 4431872890 in words is "four billion, four hundred thirty-one million, eight hundred seventy-two thousand, eight hundred ninety".