2516842 has 4 divisors (see below), whose sum is σ = 3775266. Its totient is φ = 1258420.

The previous prime is 2516837. The next prime is 2516863. The reversal of 2516842 is 2486152.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2313441 + 203401 = 1521^2 + 451^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2516842.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 629209 + ... + 629212.

2^2516842 is an apocalyptic number.

2516842 is a deficient number, since it is larger than the sum of its proper divisors (1258424).

2516842 is a wasteful number, since it uses less digits than its factorization.

2516842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258423.

The product of its digits is 3840, while the sum is 28.

The square root of 2516842 is about 1586.4557983127. The cubic root of 2516842 is about 136.0249737875.

The spelling of 2516842 in words is "two million, five hundred sixteen thousand, eight hundred forty-two".