20384264 has 32 divisors (see below), whose sum is σ = 40932000. Its totient is φ = 9487872.

The previous prime is 20384263. The next prime is 20384269. The reversal of 20384264 is 46248302.

It is not an unprimeable number, because it can be changed into a prime (20384261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7832 + ... + 10104.

It is an arithmetic number, because the mean of its divisors is an integer number (1279125).

Almost surely, 2^20384264 is an apocalyptic number.

It is an amenable number.

20384264 is an abundant number, since it is smaller than the sum of its proper divisors (20547736).

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

20384264 is a wasteful number, since it uses less digits than its factorization.

20384264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2357 (or 2353 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 20384264 is about 4514.8935757114. The cubic root of 20384264 is about 273.1691670689.

The spelling of 20384264 in words is "twenty million, three hundred eighty-four thousand, two hundred sixty-four".