3018428 has 48 divisors (see below), whose sum is σ = 6504960. Its totient is φ = 1197504.

The previous prime is 3018427. The next prime is 3018437. The reversal of 3018428 is 8248103.

It is a super-2 number, since 2×3018428² = 18221815182368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3018397 and 3018406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3018427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27638 + ... + 27746.

It is an arithmetic number, because the mean of its divisors is an integer number (135520).

Almost surely, 2^3018428 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 3018428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3252480).

3018428 is an abundant number, since it is smaller than the sum of its proper divisors (3486532).

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

3018428 is a wasteful number, since it uses less digits than its factorization.

3018428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 3018428 is about 1737.3623686497. The cubic root of 3018428 is about 144.5196630370.

The spelling of 3018428 in words is "three million, eighteen thousand, four hundred twenty-eight".