2043516 has 12 divisors (see below), whose sum is σ = 4768232. Its totient is φ = 681168.

The previous prime is 2043511. The next prime is 2043523. The reversal of 2043516 is 6153402.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2043492 and 2043501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2043511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85135 + ... + 85158.

2^2043516 is an apocalyptic number.

It is an amenable number.

2043516 is an abundant number, since it is smaller than the sum of its proper divisors (2724716).

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

2043516 is a wasteful number, since it uses less digits than its factorization.

2043516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170300 (or 170298 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2043516 is about 1429.5160020091. The cubic root of 2043516 is about 126.8993353629.

Adding to 2043516 its reverse (6153402), we get a palindrome (8196918).

The spelling of 2043516 in words is "two million, forty-three thousand, five hundred sixteen".