28628214 has 16 divisors (see below), whose sum is σ = 57309120. Its totient is φ = 9533960.

The previous prime is 28628207. The next prime is 28628219. The reversal of 28628214 is 41282682.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28628219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10669 + ... + 13079.

It is an arithmetic number, because the mean of its divisors is an integer number (3581820).

Almost surely, 2^28628214 is an apocalyptic number.

28628214 is an abundant number, since it is smaller than the sum of its proper divisors (28680906).

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

28628214 is a wasteful number, since it uses less digits than its factorization.

28628214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4395.

The product of its digits is 12288, while the sum is 33.

The square root of 28628214 is about 5350.5339920423. The cubic root of 28628214 is about 305.9131070293.

The spelling of 28628214 in words is "twenty-eight million, six hundred twenty-eight thousand, two hundred fourteen".