28419328 has 36 divisors (see below), whose sum is σ = 64835680. Its totient is φ = 12178944.

The previous prime is 28419301. The next prime is 28419371. The reversal of 28419328 is 82391482.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 6138 + ... + 9721.

Almost surely, 2^28419328 is an apocalyptic number.

28419328 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28419328 is an abundant number, since it is smaller than the sum of its proper divisors (36416352).

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

28419328 is an equidigital number, since it uses as much as digits as its factorization.

28419328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15882 (or 15868 counting only the distinct ones).

The product of its digits is 27648, while the sum is 37.

The square root of 28419328 is about 5330.9781466444. The cubic root of 28419328 is about 305.1672575405.

The spelling of 28419328 in words is "twenty-eight million, four hundred nineteen thousand, three hundred twenty-eight".