1230636 has 24 divisors (see below), whose sum is σ = 3132864. Its totient is φ = 372880.

The previous prime is 1230631. The next prime is 1230637. The reversal of 1230636 is 6360321.

1230636 is nontrivially palindromic in base 8.

1230636 is an esthetic number in base 8, because in such base its adjacent digits differ by 1.

It is not an unprimeable number, because it can be changed into a prime (1230631) 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, 4530 + ... + 4793.

It is an arithmetic number, because the mean of its divisors is an integer number (130536).

2^1230636 is an apocalyptic number.

It is an amenable number.

1230636 is an abundant number, since it is smaller than the sum of its proper divisors (1902228).

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

1230636 is a wasteful number, since it uses less digits than its factorization.

1230636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9341 (or 9339 counting only the distinct ones).

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

The square root of 1230636 is about 1109.3403445291. The cubic root of 1230636 is about 107.1625909049.

Adding to 1230636 its reverse (6360321), we get a palindrome (7590957).

The spelling of 1230636 in words is "one million, two hundred thirty thousand, six hundred thirty-six".