28477482 has 48 divisors (see below), whose sum is σ = 66046752. Its totient is φ = 8116480.

The previous prime is 28477459. The next prime is 28477487.

28477482 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (28477487) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18328 + ... + 19820.

It is an arithmetic number, because the mean of its divisors is an integer number (1375974).

Almost surely, 2^28477482 is an apocalyptic number.

28477482 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 28477482, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33023376).

28477482 is an abundant number, since it is smaller than the sum of its proper divisors (37569270).

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

28477482 is a wasteful number, since it uses less digits than its factorization.

28477482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1543 (or 1526 counting only the distinct ones).

The product of its digits is 200704, while the sum is 42.

The square root of 28477482 is about 5336.4297053367. The cubic root of 28477482 is about 305.3752686227.

The spelling of 28477482 in words is "twenty-eight million, four hundred seventy-seven thousand, four hundred eighty-two".