1212944 has 30 divisors (see below), whose sum is σ = 2464686. Its totient is φ = 577920.

The previous prime is 1212943. The next prime is 1212973. The reversal of 1212944 is 4492121.

It can be written as a sum of positive squares in only one way, i.e., 739600 + 473344 = 860^2 + 688^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28187 + ... + 28229.

2^1212944 is an apocalyptic number.

It is an amenable number.

1212944 is an abundant number, since it is smaller than the sum of its proper divisors (1251742).

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

1212944 is an equidigital number, since it uses as much as digits as its factorization.

1212944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 86 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 1212944 is about 1101.3373688384. The cubic root of 1212944 is about 106.6465760773.

The spelling of 1212944 in words is "one million, two hundred twelve thousand, nine hundred forty-four".