20048920 has 16 divisors (see below), whose sum is σ = 45110160. Its totient is φ = 8019552.

The previous prime is 20048881. The next prime is 20048923. The reversal of 20048920 is 2984002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20048923) 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 3 ways as a sum of consecutive naturals, for example, 250572 + ... + 250651.

It is an arithmetic number, because the mean of its divisors is an integer number (2819385).

Almost surely, 2^20048920 is an apocalyptic number.

20048920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20048920 is an abundant number, since it is smaller than the sum of its proper divisors (25061240).

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

20048920 is a wasteful number, since it uses less digits than its factorization.

20048920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501234 (or 501230 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 20048920 is about 4477.6020368050. The cubic root of 20048920 is about 271.6628969747.

The spelling of 20048920 in words is "twenty million, forty-eight thousand, nine hundred twenty".