28566342 has 48 divisors (see below), whose sum is σ = 71165952. Its totient is φ = 8112240.

The previous prime is 28566337. The next prime is 28566347. The reversal of 28566342 is 24366582.

It is an interprime number because it is at equal distance from previous prime (28566337) and next prime (28566347).

It is a junction number, because it is equal to n+sod(n) for n = 28566297 and 28566306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28566347) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23473 + ... + 24659.

It is an arithmetic number, because the mean of its divisors is an integer number (1482624).

Almost surely, 2^28566342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28566342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35582976).

28566342 is an abundant number, since it is smaller than the sum of its proper divisors (42599610).

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

28566342 is a wasteful number, since it uses less digits than its factorization.

28566342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393 (or 1390 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 28566342 is about 5344.7490118807. The cubic root of 28566342 is about 305.6925657637.

The spelling of 28566342 in words is "twenty-eight million, five hundred sixty-six thousand, three hundred forty-two".