28480524 has 24 divisors (see below), whose sum is σ = 66589488. Its totient is φ = 9474240.

The previous prime is 28480513. The next prime is 28480541. The reversal of 28480524 is 42508482.

It is a happy number.

It is a super-2 number, since 2×28480524² = 1622280494629152, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4554 + ... + 8814.

It is an arithmetic number, because the mean of its divisors is an integer number (2774562).

Almost surely, 2^28480524 is an apocalyptic number.

It is an amenable number.

28480524 is an abundant number, since it is smaller than the sum of its proper divisors (38108964).

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

28480524 is a wasteful number, since it uses less digits than its factorization.

28480524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4825 (or 4823 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 33.

The square root of 28480524 is about 5336.7147197503. The cubic root of 28480524 is about 305.3861417573.

It can be divided in two parts, 284 and 80524, that added together give a palindrome (80808).

The spelling of 28480524 in words is "twenty-eight million, four hundred eighty thousand, five hundred twenty-four".