20103734 has 16 divisors (see below), whose sum is σ = 34559136. Its totient is φ = 8592000.

The previous prime is 20103701. The next prime is 20103737. The reversal of 20103734 is 43730102.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20103737) 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 7 ways as a sum of consecutive naturals, for example, 3824 + ... + 7404.

It is an arithmetic number, because the mean of its divisors is an integer number (2159946).

Almost surely, 2^20103734 is an apocalyptic number.

20103734 is a deficient number, since it is larger than the sum of its proper divisors (14455402).

20103734 is a wasteful number, since it uses less digits than its factorization.

20103734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3991.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 20103734 is about 4483.7187690577. The cubic root of 20103734 is about 271.9102482858.

Adding to 20103734 its reverse (43730102), we get a palindrome (63833836).

The spelling of 20103734 in words is "twenty million, one hundred three thousand, seven hundred thirty-four".