20304888 has 16 divisors (see below), whose sum is σ = 50762280. Its totient is φ = 6768288.

The previous prime is 20304839. The next prime is 20304899. The reversal of 20304888 is 88840302.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 422995 + ... + 423042.

Almost surely, 2^20304888 is an apocalyptic number.

It is an amenable number.

20304888 is an abundant number, since it is smaller than the sum of its proper divisors (30457392).

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

20304888 is a wasteful number, since it uses less digits than its factorization.

20304888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846046 (or 846042 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 20304888 is about 4506.0945396208. The cubic root of 20304888 is about 272.8141337064.

The spelling of 20304888 in words is "twenty million, three hundred four thousand, eight hundred eighty-eight".