20333334 has 96 divisors (see below), whose sum is σ = 51480576. Its totient is φ = 5322240.

The previous prime is 20333297. The next prime is 20333353. The reversal of 20333334 is 43333302.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 20333334.

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 in 47 ways as a sum of consecutive naturals, for example, 209574 + ... + 209670.

It is an arithmetic number, because the mean of its divisors is an integer number (536256).

Almost surely, 2^20333334 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20333334, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25740288).

20333334 is an abundant number, since it is smaller than the sum of its proper divisors (31147242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20333334 is a wasteful number, since it uses less digits than its factorization.

20333334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 21.

The square root of 20333334 is about 4509.2498267450. The cubic root of 20333334 is about 272.9414733183.

Adding to 20333334 its reverse (43333302), we get a palindrome (63666636).

The spelling of 20333334 in words is "twenty million, three hundred thirty-three thousand, three hundred thirty-four".