20416324 has 6 divisors (see below), whose sum is σ = 35728574. Its totient is φ = 10208160.

The previous prime is 20416313. The next prime is 20416339. The reversal of 20416324 is 42361402.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12110400 + 8305924 = 3480^2 + 2882^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20416295 and 20416304.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2552037 + ... + 2552044.

Almost surely, 2^20416324 is an apocalyptic number.

It is an amenable number.

20416324 is a deficient number, since it is larger than the sum of its proper divisors (15312250).

20416324 is a wasteful number, since it uses less digits than its factorization.

20416324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5104085 (or 5104083 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 20416324 is about 4518.4426520650. The cubic root of 20416324 is about 273.3123038881.

Adding to 20416324 its reverse (42361402), we get a palindrome (62777726).

The spelling of 20416324 in words is "twenty million, four hundred sixteen thousand, three hundred twenty-four".