28058345 has 16 divisors (see below), whose sum is σ = 40506240. Its totient is φ = 18226944.

The previous prime is 28058311. The next prime is 28058357. The reversal of 28058345 is 54385082.

It is a cyclic number.

It is not a de Polignac number, because 28058345 - 2²⁰ = 27009769 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20432 + ... + 21761.

It is an arithmetic number, because the mean of its divisors is an integer number (2531640).

Almost surely, 2^28058345 is an apocalyptic number.

It is an amenable number.

28058345 is a deficient number, since it is larger than the sum of its proper divisors (12447895).

28058345 is a wasteful number, since it uses less digits than its factorization.

28058345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42224.

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 28058345 is about 5297.0128374396. The cubic root of 28058345 is about 303.8696672669.

The spelling of 28058345 in words is "twenty-eight million, fifty-eight thousand, three hundred forty-five".