431071212 has 144 divisors (see below), whose sum is σ = 1221859296. Its totient is φ = 117427200.

The previous prime is 431071211. The next prime is 431071217. The reversal of 431071212 is 212170134.

It is not an unprimeable number, because it can be changed into a prime (431071211) 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, 773638 + ... + 774194.

It is an arithmetic number, because the mean of its divisors is an integer number (8485134).

Almost surely, 2^431071212 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 431071212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (610929648).

431071212 is an abundant number, since it is smaller than the sum of its proper divisors (790788084).

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

431071212 is a wasteful number, since it uses less digits than its factorization.

431071212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 431071212 is about 20762.2545018599. The cubic root of 431071212 is about 755.4104821650.

The spelling of 431071212 in words is "four hundred thirty-one million, seventy-one thousand, two hundred twelve".