20604246 has 32 divisors (see below), whose sum is σ = 46717440. Its totient is φ = 6005664.

The previous prime is 20604211. The next prime is 20604247. The reversal of 20604246 is 64240602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20604247) 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 15 ways as a sum of consecutive naturals, for example, 5470 + ... + 8433.

It is an arithmetic number, because the mean of its divisors is an integer number (1459920).

Almost surely, 2^20604246 is an apocalyptic number.

20604246 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20604246 is an abundant number, since it is smaller than the sum of its proper divisors (26113194).

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

20604246 is a wasteful number, since it uses less digits than its factorization.

20604246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13940.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 20604246 is about 4539.1900158508. The cubic root of 20604246 is about 274.1483115588.

Adding to 20604246 its reverse (64240602), we get a palindrome (84844848).

The spelling of 20604246 in words is "twenty million, six hundred four thousand, two hundred forty-six".