20204748 has 24 divisors (see below), whose sum is σ = 52382960. Its totient is φ = 6734880.

The previous prime is 20204731. The next prime is 20204749. The reversal of 20204748 is 84740202.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (20204749) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 93433 + ... + 93648.

Almost surely, 2^20204748 is an apocalyptic number.

It is an amenable number.

20204748 is an abundant number, since it is smaller than the sum of its proper divisors (32178212).

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

20204748 is a wasteful number, since it uses less digits than its factorization.

20204748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187094 (or 187086 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 20204748 is about 4494.9691878810. The cubic root of 20204748 is about 272.3649045589.

The spelling of 20204748 in words is "twenty million, two hundred four thousand, seven hundred forty-eight".