28748214 has 24 divisors (see below), whose sum is σ = 67950792. Its totient is φ = 8711520.

The previous prime is 28748189. The next prime is 28748219. The reversal of 28748214 is 41284782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28748219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72399 + ... + 72794.

It is an arithmetic number, because the mean of its divisors is an integer number (2831283).

Almost surely, 2^28748214 is an apocalyptic number.

28748214 is an abundant number, since it is smaller than the sum of its proper divisors (39202578).

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

28748214 is a wasteful number, since it uses less digits than its factorization.

28748214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145212 (or 145209 counting only the distinct ones).

The product of its digits is 28672, while the sum is 36.

The square root of 28748214 is about 5361.7360994365. The cubic root of 28748214 is about 306.3399400421.

It can be divided in two parts, 287482 and 14, that added together give a cube (287496 = 66³).

The spelling of 28748214 in words is "twenty-eight million, seven hundred forty-eight thousand, two hundred fourteen".