431040632 has 32 divisors (see below), whose sum is σ = 882472320. Its totient is φ = 195750240.

The previous prime is 431040611. The next prime is 431040637. The reversal of 431040632 is 236040134.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 431040598 and 431040607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431040637) 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 7 ways as a sum of consecutive naturals, for example, 182483 + ... + 184829.

It is an arithmetic number, because the mean of its divisors is an integer number (27577260).

Almost surely, 2^431040632 is an apocalyptic number.

It is an amenable number.

431040632 is an abundant number, since it is smaller than the sum of its proper divisors (451431688).

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

431040632 is a wasteful number, since it uses less digits than its factorization.

431040632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4451 (or 4447 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 431040632 is about 20761.5180562501. The cubic root of 431040632 is about 755.3926189147.

Adding to 431040632 its reverse (236040134), we get a palindrome (667080766).

The spelling of 431040632 in words is "four hundred thirty-one million, forty thousand, six hundred thirty-two".