2542216 has 8 divisors (see below), whose sum is σ = 4766670. Its totient is φ = 1271104.

The previous prime is 2542201. The next prime is 2542223. The reversal of 2542216 is 6122452.

It can be written as a sum of positive squares in only one way, i.e., 2390116 + 152100 = 1546^2 + 390^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158881 + ... + 158896.

2^2542216 is an apocalyptic number.

It is an amenable number.

2542216 is a deficient number, since it is larger than the sum of its proper divisors (2224454).

2542216 is a wasteful number, since it uses less digits than its factorization.

2542216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317783 (or 317779 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 2542216 is about 1594.4328145143. The cubic root of 2542216 is about 136.4805663183.

Adding to 2542216 its reverse (6122452), we get a palindrome (8664668).

The spelling of 2542216 in words is "two million, five hundred forty-two thousand, two hundred sixteen".