28624480 has 24 divisors (see below), whose sum is σ = 67625712. Its totient is φ = 11449728.

The previous prime is 28624451. The next prime is 28624493. The reversal of 28624480 is 8442682.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89292 + ... + 89611.

It is an arithmetic number, because the mean of its divisors is an integer number (2817738).

Almost surely, 2^28624480 is an apocalyptic number.

28624480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28624480 is an abundant number, since it is smaller than the sum of its proper divisors (39001232).

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

28624480 is a wasteful number, since it uses less digits than its factorization.

28624480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178918 (or 178910 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 28624480 is about 5350.1850435289. The cubic root of 28624480 is about 305.8998062903.

The spelling of 28624480 in words is "twenty-eight million, six hundred twenty-four thousand, four hundred eighty".