20488800 has 72 divisors (see below), whose sum is σ = 66698856. Its totient is φ = 5463040.

The previous prime is 20488789. The next prime is 20488823. The reversal of 20488800 is 888402.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 1869 + ... + 6668.

It is an arithmetic number, because the mean of its divisors is an integer number (926373).

Almost surely, 2^20488800 is an apocalyptic number.

20488800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20488800 is an abundant number, since it is smaller than the sum of its proper divisors (46210056).

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

20488800 is a wasteful number, since it uses less digits than its factorization.

20488800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8560 (or 8547 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 20488800 is about 4526.4555669972. The cubic root of 20488800 is about 273.6353328057.

The spelling of 20488800 in words is "twenty million, four hundred eighty-eight thousand, eight hundred".