20043492 has 48 divisors (see below), whose sum is σ = 54902400. Its totient is φ = 5571072.

The previous prime is 20043469. The next prime is 20043559. The reversal of 20043492 is 29434002.

It is a happy 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 15 ways as a sum of consecutive naturals, for example, 117 + ... + 6332.

It is an arithmetic number, because the mean of its divisors is an integer number (1143800).

Almost surely, 2^20043492 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20043492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27451200).

20043492 is an abundant number, since it is smaller than the sum of its proper divisors (34858908).

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

20043492 is a wasteful number, since it uses less digits than its factorization.

20043492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6500 (or 6498 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 20043492 is about 4476.9958677667. The cubic root of 20043492 is about 271.6383782924.

Adding to 20043492 its reverse (29434002), we get a palindrome (49477494).

The spelling of 20043492 in words is "twenty million, forty-three thousand, four hundred ninety-two".