20605324 has 12 divisors (see below), whose sum is σ = 36379224. Its totient is φ = 10211264.

The previous prime is 20605301. The next prime is 20605327. The reversal of 20605324 is 42350602.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20605295 and 20605304.

It is not an unprimeable number, because it can be changed into a prime (20605327) 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, 22342 + ... + 23245.

It is an arithmetic number, because the mean of its divisors is an integer number (3031602).

Almost surely, 2^20605324 is an apocalyptic number.

It is an amenable number.

20605324 is a deficient number, since it is larger than the sum of its proper divisors (15773900).

20605324 is a wasteful number, since it uses less digits than its factorization.

20605324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45704 (or 45702 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 20605324 is about 4539.3087579498. The cubic root of 20605324 is about 274.1530925592.

Adding to 20605324 its reverse (42350602), we get a palindrome (62955926).

The spelling of 20605324 in words is "twenty million, six hundred five thousand, three hundred twenty-four".