20243748 has 24 divisors (see below), whose sum is σ = 53983552. Its totient is φ = 5783904.

The previous prime is 20243747. The next prime is 20243767. The reversal of 20243748 is 84734202.

It is not an unprimeable number, because it can be changed into a prime (20243747) 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, 120415 + ... + 120582.

Almost surely, 2^20243748 is an apocalyptic number.

20243748 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20243748 is an abundant number, since it is smaller than the sum of its proper divisors (33739804).

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

20243748 is a wasteful number, since it uses less digits than its factorization.

20243748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241011 (or 241009 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 20243748 is about 4499.3052797071. The cubic root of 20243748 is about 272.5400350796.

The spelling of 20243748 in words is "twenty million, two hundred forty-three thousand, seven hundred forty-eight".