20324918 has 8 divisors (see below), whose sum is σ = 30519840. Its totient is φ = 10151640.

The previous prime is 20324891. The next prime is 20324921. The reversal of 20324918 is 81942302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2813 + ... + 6968.

It is an arithmetic number, because the mean of its divisors is an integer number (3814980).

Almost surely, 2^20324918 is an apocalyptic number.

20324918 is a deficient number, since it is larger than the sum of its proper divisors (10194922).

20324918 is a wasteful number, since it uses less digits than its factorization.

20324918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10822.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 20324918 is about 4508.3165372454. The cubic root of 20324918 is about 272.9038111485.

The spelling of 20324918 in words is "twenty million, three hundred twenty-four thousand, nine hundred eighteen".