28079352 has 128 divisors (see below), whose sum is σ = 91200000. Its totient is φ = 8001504.

The previous prime is 28079341. The next prime is 28079353. The reversal of 28079352 is 25397082.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28079353) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73899 + ... + 74277.

It is an arithmetic number, because the mean of its divisors is an integer number (712500).

Almost surely, 2^28079352 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 28079352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45600000).

28079352 is an abundant number, since it is smaller than the sum of its proper divisors (63120648).

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

28079352 is a wasteful number, since it uses less digits than its factorization.

28079352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415 (or 391 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 28079352 is about 5298.9953764841. The cubic root of 28079352 is about 303.9454830679.

The spelling of 28079352 in words is "twenty-eight million, seventy-nine thousand, three hundred fifty-two".