28758038 has 8 divisors (see below), whose sum is σ = 43201560. Its totient is φ = 14357520.

The previous prime is 28758029. The next prime is 28758047. The reversal of 28758038 is 83085782.

It is an interprime number because it is at equal distance from previous prime (28758029) and next prime (28758047).

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 = 28757986 and 28758004.

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, 9023 + ... + 11786.

It is an arithmetic number, because the mean of its divisors is an integer number (5400195).

Almost surely, 2^28758038 is an apocalyptic number.

28758038 is a deficient number, since it is larger than the sum of its proper divisors (14443522).

28758038 is a wasteful number, since it uses less digits than its factorization.

28758038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21502.

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 28758038 is about 5362.6521423639. The cubic root of 28758038 is about 306.3748307989.

The spelling of 28758038 in words is "twenty-eight million, seven hundred fifty-eight thousand, thirty-eight".