20328486 has 8 divisors (see below), whose sum is σ = 40656984. Its totient is φ = 6776160.

The previous prime is 20328479. The next prime is 20328533. The reversal of 20328486 is 68482302.

It is a sphenic number, since it is the product of 3 distinct primes.

20328486 is an admirable number.

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, 1694035 + ... + 1694046.

It is an arithmetic number, because the mean of its divisors is an integer number (5082123).

Almost surely, 2^20328486 is an apocalyptic number.

20328486 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.

20328486 is a wasteful number, since it uses less digits than its factorization.

20328486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3388086.

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 20328486 is about 4508.7122329996. The cubic root of 20328486 is about 272.9197794593.

The spelling of 20328486 in words is "twenty million, three hundred twenty-eight thousand, four hundred eighty-six".