28813152 has 24 divisors (see below), whose sum is σ = 75634776. Its totient is φ = 9604352.

The previous prime is 28813133. The next prime is 28813157. The reversal of 28813152 is 25131882.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28813157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149973 + ... + 150164.

It is an arithmetic number, because the mean of its divisors is an integer number (3151449).

Almost surely, 2^28813152 is an apocalyptic number.

It is an amenable number.

28813152 is an abundant number, since it is smaller than the sum of its proper divisors (46821624).

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

28813152 is a wasteful number, since it uses less digits than its factorization.

28813152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300150 (or 300142 counting only the distinct ones).

The product of its digits is 3840, while the sum is 30.

The square root of 28813152 is about 5367.7883713872. The cubic root of 28813152 is about 306.5704255865.

The spelling of 28813152 in words is "twenty-eight million, eight hundred thirteen thousand, one hundred fifty-two".