20338415 has 8 divisors (see below), whose sum is σ = 24599040. Its totient is φ = 16142112.

The previous prime is 20338393. The next prime is 20338433. The reversal of 20338415 is 51483302.

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 20338415 - 2¹⁸ = 20076271 is a prime.

It is a super-2 number, since 2×20338415² = 827302249424450, which contains 22 as substring.

It is a congruent 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, 15380 + ... + 16649.

It is an arithmetic number, because the mean of its divisors is an integer number (3074880).

Almost surely, 2^20338415 is an apocalyptic number.

20338415 is a deficient number, since it is larger than the sum of its proper divisors (4260625).

20338415 is a wasteful number, since it uses less digits than its factorization.

20338415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32161.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 20338415 is about 4509.8131890357. The cubic root of 20338415 is about 272.9642061065.

The spelling of 20338415 in words is "twenty million, three hundred thirty-eight thousand, four hundred fifteen".