20052404 has 6 divisors (see below), whose sum is σ = 35091714. Its totient is φ = 10026200.

The previous prime is 20052397. The next prime is 20052407. The reversal of 20052404 is 40425002.

It can be written as a sum of positive squares in only one way, i.e., 17808400 + 2244004 = 4220^2 + 1498^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20052407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2506547 + ... + 2506554.

It is an arithmetic number, because the mean of its divisors is an integer number (5848619).

Almost surely, 2^20052404 is an apocalyptic number.

It is an amenable number.

20052404 is a deficient number, since it is larger than the sum of its proper divisors (15039310).

20052404 is a wasteful number, since it uses less digits than its factorization.

20052404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5013105 (or 5013103 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 20052404 is about 4477.9910674319. The cubic root of 20052404 is about 271.6786321318.

Adding to 20052404 its reverse (40425002), we get a palindrome (60477406).

The spelling of 20052404 in words is "twenty million, fifty-two thousand, four hundred four".