402208634412 has 216 divisors, whose sum is σ = 1166882371200. Its totient is φ = 116356331520.

The previous prime is 402208634381. The next prime is 402208634417. The reversal of 402208634412 is 214436802204.

402208634412 is a `hidden beast` number, since 4 + 0 + 2 + 2 + 0 + 8 + 634 + 4 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (402208634417) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 167655589 + ... + 167657987.

It is an arithmetic number, because the mean of its divisors is an integer number (5402233200).

Almost surely, 2^402208634412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402208634412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (583441185600).

402208634412 is an abundant number, since it is smaller than the sum of its proper divisors (764673736788).

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

402208634412 is a wasteful number, since it uses less digits than its factorization.

402208634412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4073 (or 4055 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 36.

The spelling of 402208634412 in words is "four hundred two billion, two hundred eight million, six hundred thirty-four thousand, four hundred twelve".