431229546 has 48 divisors (see below), whose sum is σ = 1023448608. Its totient is φ = 130140000.

The previous prime is 431229541. The next prime is 431229593. The reversal of 431229546 is 645922134.

It is a happy number.

It is a super-2 number, since 2×431229546² = 371917842686732232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 431229546.

It is not an unprimeable number, because it can be changed into a prime (431229541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45360 + ... + 54036.

It is an arithmetic number, because the mean of its divisors is an integer number (21321846).

Almost surely, 2^431229546 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 431229546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (511724304).

431229546 is an abundant number, since it is smaller than the sum of its proper divisors (592219062).

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

431229546 is a wasteful number, since it uses less digits than its factorization.

431229546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8947 (or 8944 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 431229546 is about 20766.0671770078. The cubic root of 431229546 is about 755.5029591687.

The spelling of 431229546 in words is "four hundred thirty-one million, two hundred twenty-nine thousand, five hundred forty-six".