20344358 has 8 divisors (see below), whose sum is σ = 30536352. Its totient is φ = 10165576.

The previous prime is 20344343. The next prime is 20344369. The reversal of 20344358 is 85344302.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20344358.

It is a congruent number.

It is an unprimeable number.

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, 2816 + ... + 6972.

It is an arithmetic number, because the mean of its divisors is an integer number (3817044).

Almost surely, 2^20344358 is an apocalyptic number.

20344358 is a deficient number, since it is larger than the sum of its proper divisors (10191994).

20344358 is a wasteful number, since it uses less digits than its factorization.

20344358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6606.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 20344358 is about 4510.4720373815. The cubic root of 20344358 is about 272.9907907461.

It can be divided in two parts, 20344 and 358, that added together give a palindrome (20702).

The spelling of 20344358 in words is "twenty million, three hundred forty-four thousand, three hundred fifty-eight".