20003492 has 12 divisors (see below), whose sum is σ = 37065420. Its totient is φ = 9413376.

The previous prime is 20003461. The next prime is 20003497. The reversal of 20003492 is 29430002.

It can be written as a sum of positive squares in 2 ways, for example, as 5456896 + 14546596 = 2336^2 + 3814^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003497) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 147017 + ... + 147152.

It is an arithmetic number, because the mean of its divisors is an integer number (3088785).

Almost surely, 2^20003492 is an apocalyptic number.

It is an amenable number.

20003492 is a deficient number, since it is larger than the sum of its proper divisors (17061928).

20003492 is a wasteful number, since it uses less digits than its factorization.

20003492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294190 (or 294188 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 20003492 is about 4472.5263554282. The cubic root of 20003492 is about 271.4575586507.

Adding to 20003492 its reverse (29430002), we get a palindrome (49433494).

The spelling of 20003492 in words is "twenty million, three thousand, four hundred ninety-two".