20284110 has 96 divisors (see below), whose sum is σ = 65774592. Its totient is φ = 4213440.

The previous prime is 20284109. The next prime is 20284129. The reversal of 20284110 is 1148202.

It is a super-2 number, since 2×20284110² = 822890236984200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5467 + ... + 8393.

It is an arithmetic number, because the mean of its divisors is an integer number (685152).

Almost surely, 2^20284110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20284110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32887296).

20284110 is an abundant number, since it is smaller than the sum of its proper divisors (45490482).

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

20284110 is a wasteful number, since it uses less digits than its factorization.

20284110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2958 (or 2955 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 20284110 is about 4503.7884053317. The cubic root of 20284110 is about 272.7210450093.

The spelling of 20284110 in words is "twenty million, two hundred eighty-four thousand, one hundred ten".