431672280 has 256 divisors, whose sum is σ = 1489259520. Its totient is φ = 99280896.

The previous prime is 431672273. The next prime is 431672281. The reversal of 431672280 is 82276134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431672281) 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 63 ways as a sum of consecutive naturals, for example, 1901527 + ... + 1901753.

It is an arithmetic number, because the mean of its divisors is an integer number (5817420).

Almost surely, 2^431672280 is an apocalyptic number.

431672280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 431672280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (744629760).

431672280 is an abundant number, since it is smaller than the sum of its proper divisors (1057587240).

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

431672280 is a wasteful number, since it uses less digits than its factorization.

431672280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330 (or 326 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 431672280 is about 20776.7244771643. The cubic root of 431672280 is about 755.7614235568.

The spelling of 431672280 in words is "four hundred thirty-one million, six hundred seventy-two thousand, two hundred eighty".