28703148 has 72 divisors (see below), whose sum is σ = 73402560. Its totient is φ = 8704800.

The previous prime is 28703141. The next prime is 28703177. The reversal of 28703148 is 84130782.

It is a super-3 number, since 3×28703148³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (28703141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 219043 + ... + 219173.

It is an arithmetic number, because the mean of its divisors is an integer number (1019480).

Almost surely, 2^28703148 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 28703148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36701280).

28703148 is an abundant number, since it is smaller than the sum of its proper divisors (44699412).

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

28703148 is a wasteful number, since it uses less digits than its factorization.

28703148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 28703148 is about 5357.5318944454. The cubic root of 28703148 is about 306.1797824300.

The spelling of 28703148 in words is "twenty-eight million, seven hundred three thousand, one hundred forty-eight".