28912452 has 48 divisors (see below), whose sum is σ = 71520960. Its totient is φ = 9065088.

The previous prime is 28912381. The next prime is 28912463. The reversal of 28912452 is 25421982.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39078 + ... + 39810.

It is an arithmetic number, because the mean of its divisors is an integer number (1490020).

Almost surely, 2^28912452 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 28912452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35760480).

28912452 is an abundant number, since it is smaller than the sum of its proper divisors (42608508).

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

28912452 is a wasteful number, since it uses less digits than its factorization.

28912452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932 (or 930 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 28912452 is about 5377.0300352518. The cubic root of 28912452 is about 306.9222040424.

The spelling of 28912452 in words is "twenty-eight million, nine hundred twelve thousand, four hundred fifty-two".