20333412 has 36 divisors (see below), whose sum is σ = 56072016. Its totient is φ = 6161520.

The previous prime is 20333407. The next prime is 20333459. The reversal of 20333412 is 21433302.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

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 11 ways as a sum of consecutive naturals, for example, 25278 + ... + 26069.

It is an arithmetic number, because the mean of its divisors is an integer number (1557556).

Almost surely, 2^20333412 is an apocalyptic number.

20333412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20333412 is an abundant number, since it is smaller than the sum of its proper divisors (35738604).

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

20333412 is a wasteful number, since it uses less digits than its factorization.

20333412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51368 (or 51363 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 20333412 is about 4509.2584756255. The cubic root of 20333412 is about 272.9418223250.

Adding to 20333412 its reverse (21433302), we get a palindrome (41766714).

It can be divided in two parts, 2033 and 3412, that added together give a palindrome (5445).

The spelling of 20333412 in words is "twenty million, three hundred thirty-three thousand, four hundred twelve".