402212303232 has 128 divisors (see below), whose sum is σ = 1080983923200. Its totient is φ = 132493670400.

The previous prime is 402212303209. The next prime is 402212303293. The reversal of 402212303232 is 232303212204.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21205369 + ... + 21224327.

It is an arithmetic number, because the mean of its divisors is an integer number (8445186900).

Almost surely, 2^402212303232 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 402212303232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (540491961600).

402212303232 is an abundant number, since it is smaller than the sum of its proper divisors (678771619968).

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

402212303232 is a wasteful number, since it uses less digits than its factorization.

402212303232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19624 (or 19612 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 402212303232 its reverse (232303212204), we get a palindrome (634515515436).

The spelling of 402212303232 in words is "four hundred two billion, two hundred twelve million, three hundred three thousand, two hundred thirty-two".