431040930 has 64 divisors (see below), whose sum is σ = 1082695680. Its totient is φ = 109619136.

The previous prime is 431040917. The next prime is 431040931. The reversal of 431040930 is 39040134.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 431040930.

It is not an unprimeable number, because it can be changed into a prime (431040931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 302199 + ... + 303621.

It is an arithmetic number, because the mean of its divisors is an integer number (16917120).

Almost surely, 2^431040930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 431040930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (541347840).

431040930 is an abundant number, since it is smaller than the sum of its proper divisors (651654750).

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

431040930 is a wasteful number, since it uses less digits than its factorization.

431040930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1895.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 431040930 is about 20761.5252329881. The cubic root of 431040930 is about 755.3927929950.

The spelling of 431040930 in words is "four hundred thirty-one million, forty thousand, nine hundred thirty".