1228372 has 6 divisors (see below), whose sum is σ = 2149658. Its totient is φ = 614184.

The previous prime is 1228351. The next prime is 1228373. The reversal of 1228372 is 2738221.

It can be written as a sum of positive squares in only one way, i.e., 715716 + 512656 = 846^2 + 716^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153543 + ... + 153550.

2^1228372 is an apocalyptic number.

It is an amenable number.

1228372 is a deficient number, since it is larger than the sum of its proper divisors (921286).

1228372 is a wasteful number, since it uses less digits than its factorization.

1228372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307097 (or 307095 counting only the distinct ones).

The product of its digits is 1344, while the sum is 25.

The square root of 1228372 is about 1108.3194485346. The cubic root of 1228372 is about 107.0968349222.

It can be divided in two parts, 1228 and 372, that added together give a square (1600 = 40²).

The spelling of 1228372 in words is "one million, two hundred twenty-eight thousand, three hundred seventy-two".