20550338 has 8 divisors (see below), whose sum is σ = 30862080. Its totient is φ = 10262980.

The previous prime is 20550329. The next prime is 20550347. The reversal of 20550338 is 83305502.

It is an interprime number because it is at equal distance from previous prime (20550329) and next prime (20550347).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3818 + ... + 7461.

It is an arithmetic number, because the mean of its divisors is an integer number (3857760).

Almost surely, 2^20550338 is an apocalyptic number.

20550338 is a deficient number, since it is larger than the sum of its proper divisors (10311742).

20550338 is a wasteful number, since it uses less digits than its factorization.

20550338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12192.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 20550338 is about 4533.2480629235. The cubic root of 20550338 is about 273.9090130700.

The spelling of 20550338 in words is "twenty million, five hundred fifty thousand, three hundred thirty-eight".