8338428 has 108 divisors (see below), whose sum is σ = 25520040. Its totient is φ = 2286144.

The previous prime is 8338423. The next prime is 8338481. The reversal of 8338428 is 8248338.

It is a happy number.

It is a super-2 number, since 2×8338428² = 139058763022368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 8338392 and 8338401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8338423) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 51075 + ... + 51237.

Almost surely, 2^8338428 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 8338428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12760020).

8338428 is an abundant number, since it is smaller than the sum of its proper divisors (17181612).

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

8338428 is a wasteful number, since it uses less digits than its factorization.

8338428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216 (or 204 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 8338428 is about 2887.6336332714. The cubic root of 8338428 is about 202.7813738247.

It can be divided in two parts, 833 and 8428, that added together give a cube (9261 = 21³).

The spelling of 8338428 in words is "eight million, three hundred thirty-eight thousand, four hundred twenty-eight".