20065304 has 48 divisors (see below), whose sum is σ = 46354680. Its totient is φ = 8090880.

The previous prime is 20065301. The next prime is 20065307. The reversal of 20065304 is 40356002.

It is an interprime number because it is at equal distance from previous prime (20065301) and next prime (20065307).

It is a super-2 number, since 2×20065304² = 805232849224832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20065301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5159 + ... + 8169.

Almost surely, 2^20065304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20065304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23177340).

20065304 is an abundant number, since it is smaller than the sum of its proper divisors (26289376).

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

20065304 is a wasteful number, since it uses less digits than its factorization.

20065304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3048 (or 3037 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 20065304 is about 4479.4312138931. The cubic root of 20065304 is about 271.7368779010.

The spelling of 20065304 in words is "twenty million, sixty-five thousand, three hundred four".