20384476 has 12 divisors (see below), whose sum is σ = 40769008. Its totient is φ = 8736192.

The previous prime is 20384443. The next prime is 20384491. The reversal of 20384476 is 67448302.

20384476 is an admirable number.

It is a hoax number, since the sum of its digits (34) 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363981 + ... + 364036.

Almost surely, 2^20384476 is an apocalyptic number.

It is an amenable number.

20384476 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20384476 is a wasteful number, since it uses less digits than its factorization.

20384476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728028 (or 728026 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 20384476 is about 4514.9170535016. The cubic root of 20384476 is about 273.1701140684.

The spelling of 20384476 in words is "twenty million, three hundred eighty-four thousand, four hundred seventy-six".