402608545812 has 144 divisors (see below), whose sum is σ = 1177877780352. Its totient is φ = 114596720640.

The previous prime is 402608545783. The next prime is 402608545817. The reversal of 402608545812 is 218545806204.

402608545812 is a `hidden beast` number, since 4 + 0 + 2 + 60 + 8 + 5 + 4 + 581 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402608545817) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3326748 + ... + 3445644.

It is an arithmetic number, because the mean of its divisors is an integer number (8179706808).

Almost surely, 2^402608545812 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 402608545812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (588938890176).

402608545812 is an abundant number, since it is smaller than the sum of its proper divisors (775269234540).

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

402608545812 is a wasteful number, since it uses less digits than its factorization.

402608545812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119438 (or 119433 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 45.

The spelling of 402608545812 in words is "four hundred two billion, six hundred eight million, five hundred forty-five thousand, eight hundred twelve".