31230434 has 8 divisors (see below), whose sum is σ = 46871040. Its totient is φ = 15606756.

The previous prime is 31230431. The next prime is 31230439. The reversal of 31230434 is 43403213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31230431) 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 3 ways as a sum of consecutive naturals, for example, 2567 + ... + 8309.

It is an arithmetic number, because the mean of its divisors is an integer number (5858880).

Almost surely, 2^31230434 is an apocalyptic number.

31230434 is a deficient number, since it is larger than the sum of its proper divisors (15640606).

31230434 is a wasteful number, since it uses less digits than its factorization.

31230434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8464.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 31230434 is about 5588.4196334921. The cubic root of 31230434 is about 314.9145111085.

Adding to 31230434 its reverse (43403213), we get a palindrome (74633647).

The spelling of 31230434 in words is "thirty-one million, two hundred thirty thousand, four hundred thirty-four".