2543416 has 32 divisors (see below), whose sum is σ = 5202000. Its totient is φ = 1161216.

The previous prime is 2543413. The next prime is 2543423. The reversal of 2543416 is 6143452.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2543413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4120 + ... + 4696.

2^2543416 is an apocalyptic number.

It is an amenable number.

2543416 is an abundant number, since it is smaller than the sum of its proper divisors (2658584).

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

2543416 is a wasteful number, since it uses less digits than its factorization.

2543416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631 (or 627 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 2543416 is about 1594.8090794826. The cubic root of 2543416 is about 136.5020372079.

Adding to 2543416 its reverse (6143452), we get a palindrome (8686868).

The spelling of 2543416 in words is "two million, five hundred forty-three thousand, four hundred sixteen".