28000142038 has 8 divisors (see below), whose sum is σ = 45818414280. Its totient is φ = 12727337280.

The previous prime is 28000141979. The next prime is 28000142057. The reversal of 28000142038 is 83024100082.

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 = 28000141997 and 28000142015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 636366843 + ... + 636366886.

It is an arithmetic number, because the mean of its divisors is an integer number (5727301785).

Almost surely, 2^28000142038 is an apocalyptic number.

28000142038 is a deficient number, since it is larger than the sum of its proper divisors (17818272242).

28000142038 is a wasteful number, since it uses less digits than its factorization.

28000142038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272733742.

The product of its (nonzero) digits is 3072, while the sum is 28.

The spelling of 28000142038 in words is "twenty-eight billion, one hundred forty-two thousand, thirty-eight".