396205131834 has 64 divisors (see below), whose sum is σ = 902119680000. Its totient is φ = 128837121264.

The previous prime is 396205131827. The next prime is 396205131857. The reversal of 396205131834 is 438131502693.

396205131834 is a `hidden beast` number, since 3 + 9 + 620 + 5 + 1 + 3 + 18 + 3 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 396205131834.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 524917 + ... + 1033415.

It is an arithmetic number, because the mean of its divisors is an integer number (14095620000).

Almost surely, 2^396205131834 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 396205131834, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (451059840000).

396205131834 is an abundant number, since it is smaller than the sum of its proper divisors (505914548166).

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

396205131834 is a wasteful number, since it uses less digits than its factorization.

396205131834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508864 (or 508858 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 396205131834 in words is "three hundred ninety-six billion, two hundred five million, one hundred thirty-one thousand, eight hundred thirty-four".