339812881 has 4 divisors (see below), whose sum is σ = 359801892. Its totient is φ = 319823872.

The previous prime is 339812857. The next prime is 339812897. The reversal of 339812881 is 188218933.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 278723025 + 61089856 = 16695^2 + 7816^2 .

It is a cyclic number.

It is not a de Polignac number, because 339812881 - 2⁵ = 339812849 is a prime.

It is a super-2 number, since 2×339812881² = 230945588187040322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (339812381) 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, 9994480 + ... + 9994513.

It is an arithmetic number, because the mean of its divisors is an integer number (89950473).

Almost surely, 2^339812881 is an apocalyptic number.

It is an amenable number.

339812881 is a deficient number, since it is larger than the sum of its proper divisors (19989011).

339812881 is a wasteful number, since it uses less digits than its factorization.

339812881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19989010.

The product of its digits is 82944, while the sum is 43.

The square root of 339812881 is about 18434.0142399858. The cubic root of 339812881 is about 697.8251416795.

The spelling of 339812881 in words is "three hundred thirty-nine million, eight hundred twelve thousand, eight hundred eighty-one".