28635142 has 8 divisors (see below), whose sum is σ = 43142616. Its totient is φ = 14254272.

The previous prime is 28635137. The next prime is 28635283. The reversal of 28635142 is 24153682.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31083 + ... + 31990.

It is an arithmetic number, because the mean of its divisors is an integer number (5392827).

Almost surely, 2^28635142 is an apocalyptic number.

28635142 is a deficient number, since it is larger than the sum of its proper divisors (14507474).

28635142 is a wasteful number, since it uses less digits than its factorization.

28635142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63302.

The product of its digits is 11520, while the sum is 31.

The square root of 28635142 is about 5351.1813648950. The cubic root of 28635142 is about 305.9377819307.

The spelling of 28635142 in words is "twenty-eight million, six hundred thirty-five thousand, one hundred forty-two".