28142535 has 8 divisors (see below), whose sum is σ = 45028080. Its totient is φ = 15009344.

The previous prime is 28142507. The next prime is 28142549. The reversal of 28142535 is 53524182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28142535 - 2⁵ = 28142503 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 938070 + ... + 938099.

It is an arithmetic number, because the mean of its divisors is an integer number (5628510).

Almost surely, 2^28142535 is an apocalyptic number.

28142535 is a deficient number, since it is larger than the sum of its proper divisors (16885545).

28142535 is a wasteful number, since it uses less digits than its factorization.

28142535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1876177.

The product of its digits is 9600, while the sum is 30.

The square root of 28142535 is about 5304.9538169526. The cubic root of 28142535 is about 304.1732874854.

The spelling of 28142535 in words is "twenty-eight million, one hundred forty-two thousand, five hundred thirty-five".