338898981 has 8 divisors (see below), whose sum is σ = 459273184. Its totient is φ = 222228720.

The previous prime is 338898977. The next prime is 338899003. The reversal of 338898981 is 189898833.

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

It is not a de Polignac number, because 338898981 - 2² = 338898977 is a prime.

It is a super-2 number, since 2×338898981² = 229705038645676722, 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 (338898971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 925771 + ... + 926136.

It is an arithmetic number, because the mean of its divisors is an integer number (57409148).

Almost surely, 2^338898981 is an apocalyptic number.

It is an amenable number.

338898981 is a deficient number, since it is larger than the sum of its proper divisors (120374203).

338898981 is a wasteful number, since it uses less digits than its factorization.

338898981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851971.

The product of its digits is 2985984, while the sum is 57.

The square root of 338898981 is about 18409.2091356473. The cubic root of 338898981 is about 697.1989980891.

The spelling of 338898981 in words is "three hundred thirty-eight million, eight hundred ninety-eight thousand, nine hundred eighty-one".