431131198 has 16 divisors (see below), whose sum is σ = 677528064. Its totient is φ = 205496280.

The previous prime is 431131193. The next prime is 431131199. The reversal of 431131198 is 891131134.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431131193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47740 + ... + 56047.

It is an arithmetic number, because the mean of its divisors is an integer number (42345504).

Almost surely, 2^431131198 is an apocalyptic number.

431131198 is a deficient number, since it is larger than the sum of its proper divisors (246396866).

431131198 is a wasteful number, since it uses less digits than its factorization.

431131198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103887.

The product of its digits is 2592, while the sum is 31.

The square root of 431131198 is about 20763.6990442455. The cubic root of 431131198 is about 755.4455204218.

The spelling of 431131198 in words is "four hundred thirty-one million, one hundred thirty-one thousand, one hundred ninety-eight".