2642237 has 4 divisors (see below), whose sum is σ = 2845500. Its totient is φ = 2438976.

The previous prime is 2642231. The next prime is 2642239. The reversal of 2642237 is 7322462.

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

It can be written as a sum of positive squares in 2 ways, for example, as 148996 + 2493241 = 386^2 + 1579^2 .

It is a cyclic number.

It is not a de Polignac number, because 2642237 - 2⁶ = 2642173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2642231) 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, 101612 + ... + 101637.

It is an arithmetic number, because the mean of its divisors is an integer number (711375).

2^2642237 is an apocalyptic number.

It is an amenable number.

2642237 is a deficient number, since it is larger than the sum of its proper divisors (203263).

2642237 is a wasteful number, since it uses less digits than its factorization.

2642237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203262.

The product of its digits is 4032, while the sum is 26.

The square root of 2642237 is about 1625.4959243259. The cubic root of 2642237 is about 138.2474904905.

Adding to 2642237 its reverse (7322462), we get a palindrome (9964699).

The spelling of 2642237 in words is "two million, six hundred forty-two thousand, two hundred thirty-seven".