13203630 has 48 divisors (see below), whose sum is σ = 37453104. Its totient is φ = 3200640.

The previous prime is 13203601. The next prime is 13203637. The reversal of 13203630 is 3630231.

It is a happy number.

13203630 is a `hidden beast` number, since 1 + 32 + 0 + 3 + 630 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

13203630 is a modest number, since divided by 3630 gives 1320 as remainder.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13203637) 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 23 ways as a sum of consecutive naturals, for example, 5679 + ... + 7658.

It is an arithmetic number, because the mean of its divisors is an integer number (780273).

Almost surely, 2^13203630 is an apocalyptic number.

13203630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13203630 is an abundant number, since it is smaller than the sum of its proper divisors (24249474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13203630 is a wasteful number, since it uses less digits than its factorization.

13203630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13361 (or 13358 counting only the distinct ones).

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

The square root of 13203630 is about 3633.6799528852. The cubic root of 13203630 is about 236.3548119800.

Adding to 13203630 its reverse (3630231), we get a palindrome (16833861).

It can be divided in two parts, 1320 and 3630, that added together give a triangular number (4950 = T₉₉).

The spelling of 13203630 in words is "thirteen million, two hundred three thousand, six hundred thirty".