431440648 has 16 divisors (see below), whose sum is σ = 809928000. Its totient is φ = 215459856.

The previous prime is 431440643. The next prime is 431440651. The reversal of 431440648 is 846044134.

It is a super-3 number, since 3×431440648³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (431440643) 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 3 ways as a sum of consecutive naturals, for example, 25428 + ... + 38851.

It is an arithmetic number, because the mean of its divisors is an integer number (50620500).

Almost surely, 2^431440648 is an apocalyptic number.

It is an amenable number.

431440648 is a deficient number, since it is larger than the sum of its proper divisors (378487352).

431440648 is a wasteful number, since it uses less digits than its factorization.

431440648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65124 (or 65120 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 34.

The square root of 431440648 is about 20771.1494145124. The cubic root of 431440648 is about 755.6262207968.

The spelling of 431440648 in words is "four hundred thirty-one million, four hundred forty thousand, six hundred forty-eight".