28480672 has 24 divisors (see below), whose sum is σ = 61169472. Its totient is φ = 12945600.

The previous prime is 28480651. The next prime is 28480679. The reversal of 28480672 is 27608482.

It is a super-2 number, since 2×28480672² = 1622297355143168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28480679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40104 + ... + 40807.

It is an arithmetic number, because the mean of its divisors is an integer number (2548728).

Almost surely, 2^28480672 is an apocalyptic number.

28480672 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28480672 is an abundant number, since it is smaller than the sum of its proper divisors (32688800).

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

28480672 is a wasteful number, since it uses less digits than its factorization.

28480672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80932 (or 80924 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 28480672 is about 5336.7285859410. The cubic root of 28480672 is about 305.3866707395.

The spelling of 28480672 in words is "twenty-eight million, four hundred eighty thousand, six hundred seventy-two".