20338355 has 8 divisors (see below), whose sum is σ = 24973872. Its totient is φ = 15892128.

The previous prime is 20338349. The next prime is 20338363. The reversal of 20338355 is 55383302.

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

It is a cyclic number.

It is not a de Polignac number, because 20338355 - 2⁸ = 20338099 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47084 + ... + 47513.

It is an arithmetic number, because the mean of its divisors is an integer number (3121734).

Almost surely, 2^20338355 is an apocalyptic number.

20338355 is a deficient number, since it is larger than the sum of its proper divisors (4635517).

20338355 is an equidigital number, since it uses as much as digits as its factorization.

20338355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94645.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 20338355 is about 4509.8065368705. The cubic root of 20338355 is about 272.9639376840.

The spelling of 20338355 in words is "twenty million, three hundred thirty-eight thousand, three hundred fifty-five".