20133998 has 8 divisors (see below), whose sum is σ = 30220320. Its totient is φ = 10060560.

The previous prime is 20133989. The next prime is 20134003. The reversal of 20133998 is 89933102.

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

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, 3458 + ... + 7226.

It is an arithmetic number, because the mean of its divisors is an integer number (3777540).

Almost surely, 2^20133998 is an apocalyptic number.

20133998 is a deficient number, since it is larger than the sum of its proper divisors (10086322).

20133998 is a wasteful number, since it uses less digits than its factorization.

20133998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6442.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 20133998 is about 4487.0923770299. The cubic root of 20133998 is about 272.0466237119.

The spelling of 20133998 in words is "twenty million, one hundred thirty-three thousand, nine hundred ninety-eight".