20282560 has 56 divisors (see below), whose sum is σ = 48682656. Its totient is φ = 8048640.

The previous prime is 20282551. The next prime is 20282567. The reversal of 20282560 is 6528202.

It is a super-2 number, since 2×20282560² = 822764480307200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (20282567) 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, 76989 + ... + 77251.

Almost surely, 2^20282560 is an apocalyptic number.

20282560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20282560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24341328).

20282560 is an abundant number, since it is smaller than the sum of its proper divisors (28400096).

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

20282560 is a wasteful number, since it uses less digits than its factorization.

20282560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521 (or 511 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 20282560 is about 4503.6163246884. The cubic root of 20282560 is about 272.7140982188.

The spelling of 20282560 in words is "twenty million, two hundred eighty-two thousand, five hundred sixty".