20099304 has 48 divisors (see below), whose sum is σ = 57641220. Its totient is φ = 6305280.

The previous prime is 20099269. The next prime is 20099311. The reversal of 20099304 is 40399002.

It can be written as a sum of positive squares in 2 ways, for example, as 19342404 + 756900 = 4398^2 + 870^2 .

It is a hoax number, since the sum of its digits (27) 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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6987 + ... + 9434.

Almost surely, 2^20099304 is an apocalyptic number.

20099304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20099304 is an abundant number, since it is smaller than the sum of its proper divisors (37541916).

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

20099304 is a wasteful number, since it uses less digits than its factorization.

20099304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16450 (or 16443 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 20099304 is about 4483.2247322658. The cubic root of 20099304 is about 271.8902743697.

The spelling of 20099304 in words is "twenty million, ninety-nine thousand, three hundred four".