20312234 has 8 divisors (see below), whose sum is σ = 30490020. Its totient is φ = 10148896.

The previous prime is 20312233. The next prime is 20312239. The reversal of 20312234 is 43221302.

It can be written as a sum of positive squares in 2 ways, for example, as 19829209 + 483025 = 4453^2 + 695^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20312233) 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, 1172 + ... + 6480.

Almost surely, 2^20312234 is an apocalyptic number.

20312234 is a deficient number, since it is larger than the sum of its proper divisors (10177786).

20312234 is a wasteful number, since it uses less digits than its factorization.

20312234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7224.

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

The square root of 20312234 is about 4506.9095841829. The cubic root of 20312234 is about 272.8470297426.

Adding to 20312234 its reverse (43221302), we get a palindrome (63533536).

The spelling of 20312234 in words is "twenty million, three hundred twelve thousand, two hundred thirty-four".