28452312 has 48 divisors (see below), whose sum is σ = 88068240. Its totient is φ = 8129088.

The previous prime is 28452301. The next prime is 28452341. The reversal of 28452312 is 21325482.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27723 + ... + 28730.

It is an arithmetic number, because the mean of its divisors is an integer number (1834755).

Almost surely, 2^28452312 is an apocalyptic number.

It is an amenable number.

28452312 is an abundant number, since it is smaller than the sum of its proper divisors (59615928).

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

28452312 is a wasteful number, since it uses less digits than its factorization.

28452312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56472 (or 56465 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 28452312 is about 5334.0708656710. The cubic root of 28452312 is about 305.2852728247.

Adding to 28452312 its reverse (21325482), we get a palindrome (49777794).

The spelling of 28452312 in words is "twenty-eight million, four hundred fifty-two thousand, three hundred twelve".