1229956 has 48 divisors (see below), whose sum is σ = 2759680. Its totient is φ = 466560.

The previous prime is 1229941. The next prime is 1229957. The reversal of 1229956 is 6599221.

Its product of digits (9720) is a multiple of the sum of its prime divisors (162).

It is not an unprimeable number, because it can be changed into a prime (1229957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11230 + ... + 11338.

2^1229956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1229956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1379840).

1229956 is an abundant number, since it is smaller than the sum of its proper divisors (1529724).

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

1229956 is a wasteful number, since it uses less digits than its factorization.

1229956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 162 counting only the distinct ones).

The product of its digits is 9720, while the sum is 34.

The square root of 1229956 is about 1109.0338137316. The cubic root of 1229956 is about 107.1428493545.

The spelling of 1229956 in words is "one million, two hundred twenty-nine thousand, nine hundred fifty-six".