399482881 has 8 divisors (see below), whose sum is σ = 483408000. Its totient is φ = 322271808.

The previous prime is 399482879. The next prime is 399482887. The reversal of 399482881 is 188284993.

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 399482881 - 2¹ = 399482879 is a prime.

It is a super-2 number, since 2×399482881² = 319173144424120322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (399482887) 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, 1678381 + ... + 1678618.

It is an arithmetic number, because the mean of its divisors is an integer number (60426000).

Almost surely, 2^399482881 is an apocalyptic number.

It is an amenable number.

399482881 is a deficient number, since it is larger than the sum of its proper divisors (83925119).

399482881 is a wasteful number, since it uses less digits than its factorization.

399482881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3357023.

The product of its digits is 995328, while the sum is 52.

The square root of 399482881 is about 19987.0678439835. The cubic root of 399482881 is about 736.4886490220.

The spelling of 399482881 in words is "three hundred ninety-nine million, four hundred eighty-two thousand, eight hundred eighty-one".