28580038 has 8 divisors (see below), whose sum is σ = 43679088. Its totient is φ = 14020344.

The previous prime is 28580023. The next prime is 28580063. The reversal of 28580038 is 83008582.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 28579985 and 28580012.

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, 134706 + ... + 134917.

It is an arithmetic number, because the mean of its divisors is an integer number (5459886).

Almost surely, 2^28580038 is an apocalyptic number.

28580038 is a deficient number, since it is larger than the sum of its proper divisors (15099050).

28580038 is a wasteful number, since it uses less digits than its factorization.

28580038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269678.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 28580038 is about 5346.0301158897. The cubic root of 28580038 is about 305.7414122517.

The spelling of 28580038 in words is "twenty-eight million, five hundred eighty thousand, thirty-eight".