402746242212 has 72 divisors (see below), whose sum is σ = 1031420819520. Its totient is φ = 132489420480.

The previous prime is 402746242187. The next prime is 402746242237. The reversal of 402746242212 is 212242647204.

402746242212 is a `hidden beast` number, since 4 + 0 + 2 + 7 + 4 + 624 + 2 + 21 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (402746242187) and next prime (402746242237).

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2740089 + ... + 2883327.

It is an arithmetic number, because the mean of its divisors is an integer number (14325289160).

Almost surely, 2^402746242212 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 402746242212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (515710409760).

402746242212 is an abundant number, since it is smaller than the sum of its proper divisors (628674577308).

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

402746242212 is a wasteful number, since it uses less digits than its factorization.

402746242212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144273 (or 144268 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 36.

Adding to 402746242212 its reverse (212242647204), we get a palindrome (614988889416).

The spelling of 402746242212 in words is "four hundred two billion, seven hundred forty-six million, two hundred forty-two thousand, two hundred twelve".