431241018 has 48 divisors (see below), whose sum is σ = 943225920. Its totient is φ = 131369472.

The previous prime is 431241017. The next prime is 431241037. The reversal of 431241018 is 810142134.

It is not an unprimeable number, because it can be changed into a prime (431241017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102378 + ... + 106506.

It is an arithmetic number, because the mean of its divisors is an integer number (19650540).

Almost surely, 2^431241018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 431241018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (471612960).

431241018 is an abundant number, since it is smaller than the sum of its proper divisors (511984902).

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

431241018 is a wasteful number, since it uses less digits than its factorization.

431241018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4263 (or 4250 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 431241018 is about 20766.3433950226. The cubic root of 431241018 is about 755.5096586579.

The spelling of 431241018 in words is "four hundred thirty-one million, two hundred forty-one thousand, eighteen".