28038043 has 8 divisors (see below), whose sum is σ = 31574016. Its totient is φ = 24666600.

The previous prime is 28038029. The next prime is 28038067. The reversal of 28038043 is 34083082.

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 28038043 - 2¹⁷ = 27906971 is a prime.

It is a super-2 number, since 2×28038043² = 1572263710539698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28038943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40771 + ... + 41452.

It is an arithmetic number, because the mean of its divisors is an integer number (3946752).

Almost surely, 2^28038043 is an apocalyptic number.

28038043 is a deficient number, since it is larger than the sum of its proper divisors (3535973).

28038043 is a wasteful number, since it uses less digits than its factorization.

28038043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82265.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 28038043 is about 5295.0961275505. The cubic root of 28038043 is about 303.7963598960.

It can be divided in two parts, 2 and 8038043, that added together give a triangular number (8038045 = T₄₀₀₉).

The spelling of 28038043 in words is "twenty-eight million, thirty-eight thousand, forty-three".