20324604 has 48 divisors (see below), whose sum is σ = 50489600. Its totient is φ = 6345216.

The previous prime is 20324573. The next prime is 20324609. The reversal of 20324604 is 40642302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20324609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21657 + ... + 22575.

Almost surely, 2^20324604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20324604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25244800).

20324604 is an abundant number, since it is smaller than the sum of its proper divisors (30164996).

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

20324604 is a wasteful number, since it uses less digits than its factorization.

20324604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042 (or 1040 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 20324604 is about 4508.2817125819. The cubic root of 20324604 is about 272.9024057761.

Adding to 20324604 its reverse (40642302), we get a palindrome (60966906).

The spelling of 20324604 in words is "twenty million, three hundred twenty-four thousand, six hundred four".