431423146 has 24 divisors (see below), whose sum is σ = 821226816. Its totient is φ = 168086520.

The previous prime is 431423141. The next prime is 431423147. The reversal of 431423146 is 641324134.

It is a super-2 number, since 2×431423146² = 372251861809074632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (431423141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 199026 + ... + 201181.

It is an arithmetic number, because the mean of its divisors is an integer number (34217784).

Almost surely, 2^431423146 is an apocalyptic number.

431423146 is a deficient number, since it is larger than the sum of its proper divisors (389803670).

431423146 is a wasteful number, since it uses less digits than its factorization.

431423146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400234 (or 400227 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

The square root of 431423146 is about 20770.7281047151. The cubic root of 431423146 is about 755.6160029765.

The spelling of 431423146 in words is "four hundred thirty-one million, four hundred twenty-three thousand, one hundred forty-six".