28150254 has 40 divisors (see below), whose sum is σ = 68816088. Its totient is φ = 8529840.

The previous prime is 28150247. The next prime is 28150259. The reversal of 28150254 is 45205182.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28150259) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6117 + ... + 9680.

Almost surely, 2^28150254 is an apocalyptic number.

28150254 is an abundant number, since it is smaller than the sum of its proper divisors (40665834).

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

28150254 is a wasteful number, since it uses less digits than its factorization.

28150254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15822 (or 15813 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 28150254 is about 5305.6812946124. The cubic root of 28150254 is about 304.2010947290.

The spelling of 28150254 in words is "twenty-eight million, one hundred fifty thousand, two hundred fifty-four".