28469088 has 72 divisors (see below), whose sum is σ = 82967976. Its totient is φ = 9254400.

The previous prime is 28469069. The next prime is 28469099. The reversal of 28469088 is 88096482.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10603 + ... + 13013.

It is an arithmetic number, because the mean of its divisors is an integer number (1152333).

Almost surely, 2^28469088 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 28469088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41483988).

28469088 is an abundant number, since it is smaller than the sum of its proper divisors (54498888).

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

28469088 is a wasteful number, since it uses less digits than its factorization.

28469088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2468 (or 2457 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 28469088 is about 5335.6431664796. The cubic root of 28469088 is about 305.3452616169.

The spelling of 28469088 in words is "twenty-eight million, four hundred sixty-nine thousand, eighty-eight".