20344404 has 24 divisors (see below), whose sum is σ = 47594848. Its totient is φ = 6763680.

The previous prime is 20344403. The next prime is 20344417. The reversal of 20344404 is 40444302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20344403) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3039 + ... + 7065.

Almost surely, 2^20344404 is an apocalyptic number.

It is an amenable number.

20344404 is an abundant number, since it is smaller than the sum of its proper divisors (27250444).

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

20344404 is a wasteful number, since it uses less digits than its factorization.

20344404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4455 (or 4453 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 20344404 is about 4510.4771366231. The cubic root of 20344404 is about 272.9909964963.

Adding to 20344404 its reverse (40444302), we get a palindrome (60788706).

The spelling of 20344404 in words is "twenty million, three hundred forty-four thousand, four hundred four".