12270836 has 6 divisors (see below), whose sum is σ = 21473970. Its totient is φ = 6135416.

The previous prime is 12270763. The next prime is 12270871. The reversal of 12270836 is 63807221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11356900 + 913936 = 3370^2 + 956^2 .

It is a super-2 number, since 2×12270836² = 301146832277792, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12270799 and 12270808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1533851 + ... + 1533858.

It is an arithmetic number, because the mean of its divisors is an integer number (3578995).

Almost surely, 2^12270836 is an apocalyptic number.

It is an amenable number.

12270836 is a deficient number, since it is larger than the sum of its proper divisors (9203134).

12270836 is a wasteful number, since it uses less digits than its factorization.

12270836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3067713 (or 3067711 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 12270836 is about 3502.9753067928. The cubic root of 12270836 is about 230.6524385995.

The spelling of 12270836 in words is "twelve million, two hundred seventy thousand, eight hundred thirty-six".