431201064 has 32 divisors (see below), whose sum is σ = 1232003520. Its totient is φ = 123200256.

The previous prime is 431201053. The next prime is 431201093. The reversal of 431201064 is 460102134.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 431201064.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1283169 + ... + 1283504.

It is an arithmetic number, because the mean of its divisors is an integer number (38500110).

Almost surely, 2^431201064 is an apocalyptic number.

It is an amenable number.

431201064 is an abundant number, since it is smaller than the sum of its proper divisors (800802456).

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

431201064 is a wasteful number, since it uses less digits than its factorization.

431201064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2566689 (or 2566685 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 431201064 is about 20765.3813834468. The cubic root of 431201064 is about 755.4863255612.

Adding to 431201064 its reverse (460102134), we get a palindrome (891303198).

The spelling of 431201064 in words is "four hundred thirty-one million, two hundred one thousand, sixty-four".