20007404 has 12 divisors (see below), whose sum is σ = 35053200. Its totient is φ = 9992208.

The previous prime is 20007373. The next prime is 20007409. The reversal of 20007404 is 40470002.

It is not an unprimeable number, because it can be changed into a prime (20007409) 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, 1937 + ... + 6615.

It is an arithmetic number, because the mean of its divisors is an integer number (2921100).

Almost surely, 2^20007404 is an apocalyptic number.

It is an amenable number.

20007404 is a deficient number, since it is larger than the sum of its proper divisors (15045796).

20007404 is a wasteful number, since it uses less digits than its factorization.

20007404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5752 (or 5750 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 20007404 is about 4472.9636707668. The cubic root of 20007404 is about 271.4752534403.

Adding to 20007404 its reverse (40470002), we get a palindrome (60477406).

The spelling of 20007404 in words is "twenty million, seven thousand, four hundred four".