28264248 has 128 divisors (see below), whose sum is σ = 84672000. Its totient is φ = 8709120.

The previous prime is 28264237. The next prime is 28264273. The reversal of 28264248 is 84246282.

It is a happy number.

28264248 is a `hidden beast` number, since 2 + 8 + 2 + 642 + 4 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

Its product of digits (49152) is a multiple of the sum of its prime divisors (192).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 291336 + ... + 291432.

It is an arithmetic number, because the mean of its divisors is an integer number (661500).

Almost surely, 2^28264248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28264248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42336000).

28264248 is an abundant number, since it is smaller than the sum of its proper divisors (56407752).

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

28264248 is a wasteful number, since it uses less digits than its factorization.

28264248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 192 counting only the distinct ones).

The product of its digits is 49152, while the sum is 36.

The square root of 28264248 is about 5316.4130765019. The cubic root of 28264248 is about 304.6111608512.

The spelling of 28264248 in words is "twenty-eight million, two hundred sixty-four thousand, two hundred forty-eight".