20386468 has 48 divisors (see below), whose sum is σ = 41126400. Its totient is φ = 8778240.

The previous prime is 20386459. The next prime is 20386477. The reversal of 20386468 is 86468302.

It is an interprime number because it is at equal distance from previous prime (20386459) and next prime (20386477).

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 15 ways as a sum of consecutive naturals, for example, 39798 + ... + 40306.

It is an arithmetic number, because the mean of its divisors is an integer number (856800).

Almost surely, 2^20386468 is an apocalyptic number.

It is an amenable number.

20386468 is an abundant number, since it is smaller than the sum of its proper divisors (20739932).

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

20386468 is a wasteful number, since it uses less digits than its factorization.

20386468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580 (or 578 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 20386468 is about 4515.1376501719. The cubic root of 20386468 is about 273.1790119693.

The spelling of 20386468 in words is "twenty million, three hundred eighty-six thousand, four hundred sixty-eight".