4218832981 has 16 divisors (see below), whose sum is σ = 4739080320. Its totient is φ = 3721913280.

The previous prime is 4218832973. The next prime is 4218832987. The reversal of 4218832981 is 1892388124.

It is a cyclic number.

It is not a de Polignac number, because 4218832981 - 2³ = 4218832973 is a prime.

It is a super-2 number, since 2×4218832981² = 35597103443146692722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4218832987) 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, 145000 + ... + 171646.

It is an arithmetic number, because the mean of its divisors is an integer number (296192520).

Almost surely, 2^4218832981 is an apocalyptic number.

It is an amenable number.

4218832981 is a deficient number, since it is larger than the sum of its proper divisors (520247339).

4218832981 is a wasteful number, since it uses less digits than its factorization.

4218832981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27084.

The product of its digits is 221184, while the sum is 46.

The square root of 4218832981 is about 64952.5440687276. The cubic root of 4218832981 is about 1615.8366116556.

The spelling of 4218832981 in words is "four billion, two hundred eighteen million, eight hundred thirty-two thousand, nine hundred eighty-one".