28483820 has 12 divisors (see below), whose sum is σ = 59816064. Its totient is φ = 11393520.

The previous prime is 28483817. The next prime is 28483849. The reversal of 28483820 is 2838482.

It is a super-2 number, since 2×28483820² = 1622656003584800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 712076 + ... + 712115.

It is an arithmetic number, because the mean of its divisors is an integer number (4984672).

Almost surely, 2^28483820 is an apocalyptic number.

28483820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28483820 is an abundant number, since it is smaller than the sum of its proper divisors (31332244).

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

28483820 is a wasteful number, since it uses less digits than its factorization.

28483820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424200 (or 1424198 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 35.

The square root of 28483820 is about 5337.0235150316. The cubic root of 28483820 is about 305.3979218999.

The spelling of 28483820 in words is "twenty-eight million, four hundred eighty-three thousand, eight hundred twenty".