1228964 has 48 divisors (see below), whose sum is σ = 2612736. Its totient is φ = 499200.

The previous prime is 1228963. The next prime is 1228987. The reversal of 1228964 is 4698221.

It is a self number, because there is not a number n which added to its sum of digits gives 1228964.

It is not an unprimeable number, because it can be changed into a prime (1228961) 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, 23162 + ... + 23214.

It is an arithmetic number, because the mean of its divisors is an integer number (54432).

2^1228964 is an apocalyptic number.

It is an amenable number.

1228964 is an abundant number, since it is smaller than the sum of its proper divisors (1383772).

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

1228964 is a wasteful number, since it uses less digits than its factorization.

1228964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 114 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 1228964 is about 1108.5864873793. The cubic root of 1228964 is about 107.1140368621.

The spelling of 1228964 in words is "one million, two hundred twenty-eight thousand, nine hundred sixty-four".