212334340432 has 40 divisors (see below), whose sum is σ = 435964049640. Its totient is φ = 100006072320.

The previous prime is 212334340417. The next prime is 212334340433. The reversal of 212334340432 is 234043433212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6693857856 + 205640482576 = 81816^2 + 453476^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212334340394 and 212334340403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212334340433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5561673 + ... + 5599720.

It is an arithmetic number, because the mean of its divisors is an integer number (10899101241).

Almost surely, 2^212334340432 is an apocalyptic number.

It is an amenable number.

212334340432 is an abundant number, since it is smaller than the sum of its proper divisors (223629709208).

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

212334340432 is a wasteful number, since it uses less digits than its factorization.

212334340432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11161471 (or 11161465 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 212334340432 its reverse (234043433212), we get a palindrome (446377773644).

The spelling of 212334340432 in words is "two hundred twelve billion, three hundred thirty-four million, three hundred forty thousand, four hundred thirty-two".