28058312 has 16 divisors (see below), whose sum is σ = 54423900. Its totient is φ = 13545280.

The previous prime is 28058311. The next prime is 28058357. The reversal of 28058312 is 21385082.

It can be written as a sum of positive squares in 2 ways, for example, as 25542916 + 2515396 = 5054^2 + 1586^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (28058311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60239 + ... + 60702.

Almost surely, 2^28058312 is an apocalyptic number.

It is an amenable number.

28058312 is a deficient number, since it is larger than the sum of its proper divisors (26365588).

28058312 is a wasteful number, since it uses less digits than its factorization.

28058312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120976 (or 120972 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 28058312 is about 5297.0097224755. The cubic root of 28058312 is about 303.8695481377.

The spelling of 28058312 in words is "twenty-eight million, fifty-eight thousand, three hundred twelve".