2402237 has 4 divisors (see below), whose sum is σ = 2405340. Its totient is φ = 2399136.

The previous prime is 2402233. The next prime is 2402249. The reversal of 2402237 is 7322042.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2247001 + 155236 = 1499^2 + 394^2 .

It is a cyclic number.

It is not a de Polignac number, because 2402237 - 2² = 2402233 is a prime.

It is a super-3 number, since 3×2402237³ = 41588074203633378159, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2402233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 689 + ... + 2297.

It is an arithmetic number, because the mean of its divisors is an integer number (601335).

2^2402237 is an apocalyptic number.

It is an amenable number.

2402237 is a deficient number, since it is larger than the sum of its proper divisors (3103).

2402237 is a wasteful number, since it uses less digits than its factorization.

2402237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3102.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 2402237 is about 1549.9151589684. The cubic root of 2402237 is about 133.9281749186.

Adding to 2402237 its reverse (7322042), we get a palindrome (9724279).

The spelling of 2402237 in words is "two million, four hundred two thousand, two hundred thirty-seven".