20040935 has 16 divisors (see below), whose sum is σ = 25237440. Its totient is φ = 15248640.

The previous prime is 20040929. The next prime is 20040959. The reversal of 20040935 is 53904002.

It is not a de Polignac number, because 20040935 - 2⁴ = 20040919 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 20040935.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25955 + ... + 26715.

It is an arithmetic number, because the mean of its divisors is an integer number (1577340).

Almost surely, 2^20040935 is an apocalyptic number.

20040935 is a deficient number, since it is larger than the sum of its proper divisors (5196505).

20040935 is a wasteful number, since it uses less digits than its factorization.

20040935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 20040935 is about 4476.7102877001. The cubic root of 20040935 is about 271.6268265982.

Adding to 20040935 its reverse (53904002), we get a palindrome (73944937).

The spelling of 20040935 in words is "twenty million, forty thousand, nine hundred thirty-five".