438870981 has 8 divisors (see below), whose sum is σ = 610603200. Its totient is φ = 279859712.

The previous prime is 438870959. The next prime is 438871001. The reversal of 438870981 is 189078834.

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 438870981 - 2⁶ = 438870917 is a prime.

It is a super-2 number, since 2×438870981² = 385215475927804722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 438870981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438870931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3180156 + ... + 3180293.

It is an arithmetic number, because the mean of its divisors is an integer number (76325400).

Almost surely, 2^438870981 is an apocalyptic number.

It is an amenable number.

438870981 is a deficient number, since it is larger than the sum of its proper divisors (171732219).

438870981 is a wasteful number, since it uses less digits than its factorization.

438870981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6360475.

The product of its (nonzero) digits is 387072, while the sum is 48.

The square root of 438870981 is about 20949.2477430575. The cubic root of 438870981 is about 759.9393886335.

The spelling of 438870981 in words is "four hundred thirty-eight million, eight hundred seventy thousand, nine hundred eighty-one".