234431000 has 32 divisors (see below), whose sum is σ = 548570880. Its totient is φ = 93772000.

The previous prime is 234430981. The next prime is 234431009. The reversal of 234431000 is 134432.

It is a super-2 number, since 2×234431000² = 109915787522000000, 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 234431000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234431009) 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 7 ways as a sum of consecutive naturals, for example, 116216 + ... + 118215.

It is an arithmetic number, because the mean of its divisors is an integer number (17142840).

Almost surely, 2^234431000 is an apocalyptic number.

234431000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234431000 is an abundant number, since it is smaller than the sum of its proper divisors (314139880).

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

234431000 is a wasteful number, since it uses less digits than its factorization.

234431000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234452 (or 234438 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 234431000 is about 15311.1397354998. The cubic root of 234431000 is about 616.6021196948.

Adding to 234431000 its reverse (134432), we get a palindrome (234565432).

The spelling of 234431000 in words is "two hundred thirty-four million, four hundred thirty-one thousand".