431225646 has 16 divisors (see below), whose sum is σ = 862654800. Its totient is φ = 143707968.

The previous prime is 431225633. The next prime is 431225647. The reversal of 431225646 is 646522134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431225647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45660 + ... + 54288.

It is an arithmetic number, because the mean of its divisors is an integer number (53915925).

Almost surely, 2^431225646 is an apocalyptic number.

431225646 is an abundant number, since it is smaller than the sum of its proper divisors (431429154).

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

431225646 is a wasteful number, since it uses less digits than its factorization.

431225646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16963.

The product of its digits is 34560, while the sum is 33.

The square root of 431225646 is about 20765.9732736031. The cubic root of 431225646 is about 755.5006815956.

The spelling of 431225646 in words is "four hundred thirty-one million, two hundred twenty-five thousand, six hundred forty-six".