2537842 has 4 divisors (see below), whose sum is σ = 3806766. Its totient is φ = 1268920.

The previous prime is 2537837. The next prime is 2537851. The reversal of 2537842 is 2487352.

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., 2531281 + 6561 = 1591^2 + 81^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634459 + ... + 634462.

2^2537842 is an apocalyptic number.

2537842 is a deficient number, since it is larger than the sum of its proper divisors (1268924).

2537842 is a wasteful number, since it uses less digits than its factorization.

2537842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268923.

The product of its digits is 13440, while the sum is 31.

The square root of 2537842 is about 1593.0605763749. The cubic root of 2537842 is about 136.4022476790.

The spelling of 2537842 in words is "two million, five hundred thirty-seven thousand, eight hundred forty-two".