20344004 has 12 divisors (see below), whose sum is σ = 35969724. Its totient is φ = 10066944.

The previous prime is 20343991. The next prime is 20344007. The reversal of 20344004 is 40044302.

It can be written as a sum of positive squares in 2 ways, for example, as 12945604 + 7398400 = 3598^2 + 2720^2 .

It is not an unprimeable number, because it can be changed into a prime (20344007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25829 + ... + 26604.

It is an arithmetic number, because the mean of its divisors is an integer number (2997477).

Almost surely, 2^20344004 is an apocalyptic number.

It is an amenable number.

20344004 is a deficient number, since it is larger than the sum of its proper divisors (15625720).

20344004 is a wasteful number, since it uses less digits than its factorization.

20344004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52534 (or 52532 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 20344004 is about 4510.4327951983. The cubic root of 20344004 is about 272.9892073538.

Adding to 20344004 its reverse (40044302), we get a palindrome (60388306).

The spelling of 20344004 in words is "twenty million, three hundred forty-four thousand, four".