431401035660 has 96 divisors (see below), whose sum is σ = 1393385172480. Its totient is φ = 97684389888.

The previous prime is 431401035643. The next prime is 431401035661. The reversal of 431401035660 is 66530104134.

It is a super-2 number, since 2×431401035660² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (431401035661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4754805 + ... + 4844684.

It is an arithmetic number, because the mean of its divisors is an integer number (14514428880).

Almost surely, 2^431401035660 is an apocalyptic number.

It is an amenable number.

431401035660 is an abundant number, since it is smaller than the sum of its proper divisors (961984136820).

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

431401035660 is a wasteful number, since it uses less digits than its factorization.

431401035660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9599615 (or 9599613 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

Adding to 431401035660 its reverse (66530104134), we get a palindrome (497931139794).

The spelling of 431401035660 in words is "four hundred thirty-one billion, four hundred one million, thirty-five thousand, six hundred sixty".