28014990 has 32 divisors (see below), whose sum is σ = 68052096. Its totient is φ = 7380000.

The previous prime is 28014953. The next prime is 28015003. The reversal of 28014990 is 9941082.

It is a congruent 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, 3136 + ... + 8115.

It is an arithmetic number, because the mean of its divisors is an integer number (2126628).

Almost surely, 2^28014990 is an apocalyptic number.

28014990 is an abundant number, since it is smaller than the sum of its proper divisors (40037106).

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

28014990 is a wasteful number, since it uses less digits than its factorization.

28014990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11344.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 28014990 is about 5292.9188544696. The cubic root of 28014990 is about 303.7130761735.

The spelling of 28014990 in words is "twenty-eight million, fourteen thousand, nine hundred ninety".