20488120 has 32 divisors (see below), whose sum is σ = 46260720. Its totient is φ = 8166400.

The previous prime is 20488103. The next prime is 20488129. The reversal of 20488120 is 2188402.

It is a super-2 number, since 2×20488120² = 839526122268800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20488129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13395 + ... + 14845.

Almost surely, 2^20488120 is an apocalyptic number.

20488120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20488120 is an abundant number, since it is smaller than the sum of its proper divisors (25772600).

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

20488120 is a wasteful number, since it uses less digits than its factorization.

20488120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1815 (or 1811 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 20488120 is about 4526.3804524145. The cubic root of 20488120 is about 273.6323055569.

The spelling of 20488120 in words is "twenty million, four hundred eighty-eight thousand, one hundred twenty".