1284272 has 20 divisors (see below), whose sum is σ = 2714856. Its totient is φ = 583680.

The previous prime is 1284271. The next prime is 1284287. The reversal of 1284272 is 2724821.

It is not an unprimeable number, because it can be changed into a prime (1284271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3473 + ... + 3824.

2^1284272 is an apocalyptic number.

It is an amenable number.

1284272 is an abundant number, since it is smaller than the sum of its proper divisors (1430584).

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

1284272 is a wasteful number, since it uses less digits than its factorization.

1284272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7316 (or 7310 counting only the distinct ones).

The product of its digits is 1792, while the sum is 26.

The square root of 1284272 is about 1133.2572523483. The cubic root of 1284272 is about 108.6973621157.

The spelling of 1284272 in words is "one million, two hundred eighty-four thousand, two hundred seventy-two".