28876432 has 20 divisors (see below), whose sum is σ = 60252220. Its totient is φ = 13327488.

The previous prime is 28876427. The next prime is 28876451. The reversal of 28876432 is 23467882.

It can be written as a sum of positive squares in 2 ways, for example, as 6635776 + 22240656 = 2576^2 + 4716^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69207 + ... + 69622.

It is an arithmetic number, because the mean of its divisors is an integer number (3012611).

Almost surely, 2^28876432 is an apocalyptic number.

It is an amenable number.

28876432 is an abundant number, since it is smaller than the sum of its proper divisors (31375788).

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

28876432 is a wasteful number, since it uses less digits than its factorization.

28876432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138850 (or 138844 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The square root of 28876432 is about 5373.6795587381. The cubic root of 28876432 is about 306.7946934460.

The spelling of 28876432 in words is "twenty-eight million, eight hundred seventy-six thousand, four hundred thirty-two".