431461980 has 36 divisors (see below), whose sum is σ = 1308768552. Its totient is φ = 115056480.

The previous prime is 431461969. The next prime is 431461981. The reversal of 431461980 is 89164134.

431461980 is a `hidden beast` number, since 4 + 31 + 4 + 619 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431461981) 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 11 ways as a sum of consecutive naturals, for example, 1198326 + ... + 1198685.

It is an arithmetic number, because the mean of its divisors is an integer number (36354682).

Almost surely, 2^431461980 is an apocalyptic number.

It is an amenable number.

431461980 is an abundant number, since it is smaller than the sum of its proper divisors (877306572).

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

431461980 is a wasteful number, since it uses less digits than its factorization.

431461980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2397026 (or 2397021 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 431461980 is about 20771.6629088766. The cubic root of 431461980 is about 755.6386742308.

The spelling of 431461980 in words is "four hundred thirty-one million, four hundred sixty-one thousand, nine hundred eighty".