28038150 has 240 divisors, whose sum is σ = 95065344. Its totient is φ = 5987520.

The previous prime is 28038089. The next prime is 28038163. The reversal of 28038150 is 5183082.

It is a happy number.

28038150 is a `hidden beast` number, since 280 + 381 + 5 + 0 = 666.

It is a super-3 number, since 3×28038150³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 652029 + ... + 652071.

Almost surely, 2^28038150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28038150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47532672).

28038150 is an abundant number, since it is smaller than the sum of its proper divisors (67027194).

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

28038150 is a wasteful number, since it uses less digits than its factorization.

28038150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97 (or 83 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 28038150 is about 5295.1062312290. The cubic root of 28038150 is about 303.7967463492.

The spelling of 28038150 in words is "twenty-eight million, thirty-eight thousand, one hundred fifty".