20133382 has 4 divisors (see below), whose sum is σ = 30200076. Its totient is φ = 10066690.

The previous prime is 20133341. The next prime is 20133397. The reversal of 20133382 is 28333102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-4 number, since 4×20133382⁴ (a number of 30 digits) contains 4444 as substring.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 5033344 + ... + 5033347.

It is an arithmetic number, because the mean of its divisors is an integer number (7550019).

Almost surely, 2^20133382 is an apocalyptic number.

20133382 is a deficient number, since it is larger than the sum of its proper divisors (10066694).

20133382 is a wasteful number, since it uses less digits than its factorization.

20133382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10066693.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 20133382 is about 4487.0237351723. The cubic root of 20133382 is about 272.0438492600.

Adding to 20133382 its reverse (28333102), we get a palindrome (48466484).

The spelling of 20133382 in words is "twenty million, one hundred thirty-three thousand, three hundred eighty-two".