399337296246 has 192 divisors, whose sum is σ = 1097326264320. Its totient is φ = 102377960640.

The previous prime is 399337296229. The next prime is 399337296301. The reversal of 399337296246 is 642692733993.

399337296246 is a `hidden beast` number, since 3 + 9 + 9 + 337 + 296 + 2 + 4 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3430815 + ... + 3545301.

It is an arithmetic number, because the mean of its divisors is an integer number (5715240960).

Almost surely, 2^399337296246 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 399337296246, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (548663132160).

399337296246 is an abundant number, since it is smaller than the sum of its proper divisors (697988968074).

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

399337296246 is a wasteful number, since it uses less digits than its factorization.

399337296246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114599 (or 114596 counting only the distinct ones).

The product of its digits is 79361856, while the sum is 63.

The spelling of 399337296246 in words is "three hundred ninety-nine billion, three hundred thirty-seven million, two hundred ninety-six thousand, two hundred forty-six".