28832458 has 4 divisors (see below), whose sum is σ = 43248690. Its totient is φ = 14416228.

The previous prime is 28832423. The next prime is 28832491. The reversal of 28832458 is 85423882.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 28121809 + 710649 = 5303^2 + 843^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28832458.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7208113 + ... + 7208116.

Almost surely, 2^28832458 is an apocalyptic number.

28832458 is a deficient number, since it is larger than the sum of its proper divisors (14416232).

28832458 is a wasteful number, since it uses less digits than its factorization.

28832458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14416231.

The product of its digits is 122880, while the sum is 40.

The square root of 28832458 is about 5369.5863900304. The cubic root of 28832458 is about 306.6388819082.

The spelling of 28832458 in words is "twenty-eight million, eight hundred thirty-two thousand, four hundred fifty-eight".