2146518 has 48 divisors (see below), whose sum is σ = 5228496. Its totient is φ = 630720.

The previous prime is 2146511. The next prime is 2146519. The reversal of 2146518 is 8156412.

2146518 is a `hidden beast` number, since 2 + 1 + 4 + 651 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2146491 and 2146500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2146511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7180 + ... + 7472.

It is an arithmetic number, because the mean of its divisors is an integer number (108927).

2^2146518 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2146518, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2614248).

2146518 is an abundant number, since it is smaller than the sum of its proper divisors (3081978).

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

2146518 is a wasteful number, since it uses less digits than its factorization.

2146518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349 (or 346 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 2146518 is about 1465.0999965873. The cubic root of 2146518 is about 128.9965746341.

The spelling of 2146518 in words is "two million, one hundred forty-six thousand, five hundred eighteen".