2306631 has 8 divisors (see below), whose sum is σ = 3181680. Its totient is φ = 1484672.

The previous prime is 2306627. The next prime is 2306639. The reversal of 2306631 is 1366032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2306631 - 2² = 2306627 is a prime.

It is a super-2 number, since 2×2306631² = 10641093140322, which contains 22 as substring.

2306631 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2306598 and 2306607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2306639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13170 + ... + 13343.

It is an arithmetic number, because the mean of its divisors is an integer number (397710).

2^2306631 is an apocalyptic number.

2306631 is a deficient number, since it is larger than the sum of its proper divisors (875049).

2306631 is a wasteful number, since it uses less digits than its factorization.

2306631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26545.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 2306631 is about 1518.7596913271. The cubic root of 2306631 is about 132.1273449668.

The spelling of 2306631 in words is "two million, three hundred six thousand, six hundred thirty-one".