28459488 has 96 divisors (see below), whose sum is σ = 78769152. Its totient is φ = 8985600.

The previous prime is 28459451. The next prime is 28459517. The reversal of 28459488 is 88495482.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

Its product of digits (737280) is a multiple of the sum of its prime divisors (240).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217183 + ... + 217313.

It is an arithmetic number, because the mean of its divisors is an integer number (820512).

Almost surely, 2^28459488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28459488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39384576).

28459488 is an abundant number, since it is smaller than the sum of its proper divisors (50309664).

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

28459488 is a wasteful number, since it uses less digits than its factorization.

28459488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 240 counting only the distinct ones).

The product of its digits is 737280, while the sum is 48.

The square root of 28459488 is about 5334.7434802435. The cubic root of 28459488 is about 305.3109361518.

The spelling of 28459488 in words is "twenty-eight million, four hundred fifty-nine thousand, four hundred eighty-eight".