2303631 has 12 divisors (see below), whose sum is σ = 3630120. Its totient is φ = 1396080.

The previous prime is 2303629. The next prime is 2303663. The reversal of 2303631 is 1363032.

It is a happy number.

2303631 is a `hidden beast` number, since 2 + 30 + 3 + 631 = 666.

2303631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2303631 - 2¹ = 2303629 is a prime.

It is a super-2 number, since 2×2303631² = 10613431568322, which contains 22 as substring.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2303621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11536 + ... + 11733.

It is an arithmetic number, because the mean of its divisors is an integer number (302510).

2^2303631 is an apocalyptic number.

2303631 is a deficient number, since it is larger than the sum of its proper divisors (1326489).

2303631 is a wasteful number, since it uses less digits than its factorization.

2303631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23286 (or 23283 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 2303631 is about 1517.7717219661. The cubic root of 2303631 is about 132.0700385889.

Adding to 2303631 its reverse (1363032), we get a palindrome (3666663).

The spelling of 2303631 in words is "two million, three hundred three thousand, six hundred thirty-one".