43401332212 has 48 divisors (see below), whose sum is σ = 90680002560. Its totient is φ = 17771558112.

The previous prime is 43401332167. The next prime is 43401332243. The reversal of 43401332212 is 21223310434.

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, 533239 + ... + 609217.

It is an arithmetic number, because the mean of its divisors is an integer number (1889166720).

Almost surely, 2^43401332212 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 43401332212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45340001280).

43401332212 is an abundant number, since it is smaller than the sum of its proper divisors (47278670348).

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

43401332212 is a wasteful number, since it uses less digits than its factorization.

43401332212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76900 (or 76898 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 43401332212 its reverse (21223310434), we get a palindrome (64624642646).

The spelling of 43401332212 in words is "forty-three billion, four hundred one million, three hundred thirty-two thousand, two hundred twelve".