20338087 has 24 divisors (see below), whose sum is σ = 26142480. Its totient is φ = 15644160.

The previous prime is 20338081. The next prime is 20338099. The reversal of 20338087 is 78083302.

It is not a de Polignac number, because 20338087 - 2⁷ = 20337959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20338081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52089 + ... + 52477.

It is an arithmetic number, because the mean of its divisors is an integer number (1089270).

Almost surely, 2^20338087 is an apocalyptic number.

20338087 is a deficient number, since it is larger than the sum of its proper divisors (5804393).

20338087 is a wasteful number, since it uses less digits than its factorization.

20338087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511 (or 504 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 20338087 is about 4509.7768237464. The cubic root of 20338087 is about 272.9627387234.

The spelling of 20338087 in words is "twenty million, three hundred thirty-eight thousand, eighty-seven".