20482280 has 128 divisors (see below), whose sum is σ = 60238080. Its totient is φ = 6082560.

The previous prime is 20482279. The next prime is 20482291. The reversal of 20482280 is 8228402.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61715 + ... + 62045.

It is an arithmetic number, because the mean of its divisors is an integer number (470610).

Almost surely, 2^20482280 is an apocalyptic number.

20482280 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 20482280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30119040).

20482280 is an abundant number, since it is smaller than the sum of its proper divisors (39755800).

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

20482280 is a wasteful number, since it uses less digits than its factorization.

20482280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379 (or 375 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 20482280 is about 4525.7352993740. The cubic root of 20482280 is about 273.6063040737.

The spelling of 20482280 in words is "twenty million, four hundred eighty-two thousand, two hundred eighty".