20336672 has 24 divisors (see below), whose sum is σ = 40606272. Its totient is φ = 10024000.

The previous prime is 20336647. The next prime is 20336689. The reversal of 20336672 is 27663302.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2204 + ... + 6747.

It is an arithmetic number, because the mean of its divisors is an integer number (1691928).

Almost surely, 2^20336672 is an apocalyptic number.

It is an amenable number.

20336672 is a deficient number, since it is larger than the sum of its proper divisors (20269600).

20336672 is an equidigital number, since it uses as much as digits as its factorization.

20336672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9032 (or 9024 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 29.

The square root of 20336672 is about 4509.6199396401. The cubic root of 20336672 is about 272.9564082160.

Adding to 20336672 its reverse (27663302), we get a palindrome (47999974).

The spelling of 20336672 in words is "twenty million, three hundred thirty-six thousand, six hundred seventy-two".