28142576 has 80 divisors (see below), whose sum is σ = 69424128. Its totient is φ = 10732800.

The previous prime is 28142573. The next prime is 28142579. The reversal of 28142576 is 67524182.

It is an interprime number because it is at equal distance from previous prime (28142573) and next prime (28142579).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28142573) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65081 + ... + 65511.

Almost surely, 2^28142576 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 28142576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34712064).

28142576 is an abundant number, since it is smaller than the sum of its proper divisors (41281552).

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

28142576 is a wasteful number, since it uses less digits than its factorization.

28142576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510 (or 504 counting only the distinct ones).

The product of its digits is 26880, while the sum is 35.

The square root of 28142576 is about 5304.9576812638. The cubic root of 28142576 is about 304.1734351989.

The spelling of 28142576 in words is "twenty-eight million, one hundred forty-two thousand, five hundred seventy-six".