13630023 has 36 divisors (see below), whose sum is σ = 22425624. Its totient is φ = 7905600.

The previous prime is 13630009. The next prime is 13630031. The reversal of 13630023 is 32003631.

It is a happy number.

13630023 is a `hidden beast` number, since 13 + 630 + 0 + 23 = 666.

It is not a de Polignac number, because 13630023 - 2⁵ = 13629991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13629978 and 13630005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13630033) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 223413 + ... + 223473.

It is an arithmetic number, because the mean of its divisors is an integer number (622934).

Almost surely, 2^13630023 is an apocalyptic number.

13630023 is a deficient number, since it is larger than the sum of its proper divisors (8795601).

13630023 is a wasteful number, since it uses less digits than its factorization.

13630023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176 (or 112 counting only the distinct ones).

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

The square root of 13630023 is about 3691.8861033353. The cubic root of 13630023 is about 238.8721560862.

Adding to 13630023 its reverse (32003631), we get a palindrome (45633654).

It can be divided in two parts, 13 and 630023, that added together give a palindrome (630036).

The spelling of 13630023 in words is "thirteen million, six hundred thirty thousand, twenty-three".