28418208 has 96 divisors (see below), whose sum is σ = 91840896. Its totient is φ = 7492608.

The previous prime is 28418197. The next prime is 28418233. The reversal of 28418208 is 80281482.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

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, 7110 + ... + 10362.

It is an arithmetic number, because the mean of its divisors is an integer number (956676).

Almost surely, 2^28418208 is an apocalyptic number.

28418208 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28418208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45920448).

28418208 is an abundant number, since it is smaller than the sum of its proper divisors (63422688).

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

28418208 is a wasteful number, since it uses less digits than its factorization.

28418208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3286 (or 3278 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 33.

The square root of 28418208 is about 5330.8730992212. The cubic root of 28418208 is about 305.1632486278.

The spelling of 28418208 in words is "twenty-eight million, four hundred eighteen thousand, two hundred eight".