20344330 has 8 divisors (see below), whose sum is σ = 36619812. Its totient is φ = 8137728.

The previous prime is 20344327. The next prime is 20344333. The reversal of 20344330 is 3344302.

It is an interprime number because it is at equal distance from previous prime (20344327) and next prime (20344333).

It can be written as a sum of positive squares in 2 ways, for example, as 17901361 + 2442969 = 4231^2 + 1563^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 20344298 and 20344307.

It is not an unprimeable number, because it can be changed into a prime (20344333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1017207 + ... + 1017226.

Almost surely, 2^20344330 is an apocalyptic number.

20344330 is a deficient number, since it is larger than the sum of its proper divisors (16275482).

20344330 is a wasteful number, since it uses less digits than its factorization.

20344330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2034440.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 20344330 is about 4510.4689334924. The cubic root of 20344330 is about 272.9906655067.

Adding to 20344330 its reverse (3344302), we get a palindrome (23688632).

The spelling of 20344330 in words is "twenty million, three hundred forty-four thousand, three hundred thirty".