28900158 has 32 divisors (see below), whose sum is σ = 67309056. Its totient is φ = 8100768.

The previous prime is 28900139. The next prime is 28900177. The reversal of 28900158 is 85100982.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28900139) and next prime (28900177).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4266 + ... + 8717.

It is an arithmetic number, because the mean of its divisors is an integer number (2103408).

Almost surely, 2^28900158 is an apocalyptic number.

28900158 is an abundant number, since it is smaller than the sum of its proper divisors (38408898).

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

28900158 is a wasteful number, since it uses less digits than its factorization.

28900158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13048.

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 28900158 is about 5375.8867175565. The cubic root of 28900158 is about 306.8786952626.

The spelling of 28900158 in words is "twenty-eight million, nine hundred thousand, one hundred fifty-eight".