399206442498 has 16 divisors (see below), whose sum is σ = 798434828640. Its totient is φ = 133065156896.

The previous prime is 399206442421. The next prime is 399206442529. The reversal of 399206442498 is 894244602993.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 672915 + ... + 1118582.

It is an arithmetic number, because the mean of its divisors is an integer number (49902176790).

Almost surely, 2^399206442498 is an apocalyptic number.

399206442498 is an abundant number, since it is smaller than the sum of its proper divisors (399228386142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

399206442498 is a wasteful number, since it uses less digits than its factorization.

399206442498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828641.

The product of its (nonzero) digits is 26873856, while the sum is 60.

The spelling of 399206442498 in words is "three hundred ninety-nine billion, two hundred six million, four hundred forty-two thousand, four hundred ninety-eight".