20385468 has 36 divisors (see below), whose sum is σ = 52380328. Its totient is φ = 6683040.

The previous prime is 20385457. The next prime is 20385473. The reversal of 20385468 is 86458302.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2446 + ... + 6837.

Almost surely, 2^20385468 is an apocalyptic number.

It is an amenable number.

20385468 is an abundant number, since it is smaller than the sum of its proper divisors (31994860).

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

20385468 is a wasteful number, since it uses less digits than its factorization.

20385468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9354 (or 9349 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 20385468 is about 4515.0269102188. The cubic root of 20385468 is about 273.1745452240.

The spelling of 20385468 in words is "twenty million, three hundred eighty-five thousand, four hundred sixty-eight".