20456548 has 12 divisors (see below), whose sum is σ = 40913152. Its totient is φ = 8767080.

The previous prime is 20456543. The next prime is 20456551. The reversal of 20456548 is 84565402.

20456548 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 not an unprimeable number, because it can be changed into a prime (20456543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365268 + ... + 365323.

Almost surely, 2^20456548 is an apocalyptic number.

20456548 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20456548 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.

20456548 is a wasteful number, since it uses less digits than its factorization.

20456548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730602 (or 730600 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 20456548 is about 4522.8915529780. The cubic root of 20456548 is about 273.4916783616.

The spelling of 20456548 in words is "twenty million, four hundred fifty-six thousand, five hundred forty-eight".