28406058 has 32 divisors (see below), whose sum is σ = 60673536. Its totient is φ = 8844528.

The previous prime is 28406029. The next prime is 28406069. The reversal of 28406058 is 85060482.

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, 3541 + ... + 8327.

It is an arithmetic number, because the mean of its divisors is an integer number (1896048).

Almost surely, 2^28406058 is an apocalyptic number.

28406058 is an abundant number, since it is smaller than the sum of its proper divisors (32267478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28406058 is a wasteful number, since it uses less digits than its factorization.

28406058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4858.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 28406058 is about 5329.7333892044. The cubic root of 28406058 is about 305.1197523125.

The spelling of 28406058 in words is "twenty-eight million, four hundred six thousand, fifty-eight".