1022272 has 14 divisors (see below), whose sum is σ = 2028698. Its totient is φ = 511104.

The previous prime is 1022251. The next prime is 1022291. The reversal of 1022272 is 2722201.

It can be written as a sum of positive squares in only one way, i.e., 952576 + 69696 = 976^2 + 264^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an Ulam number.

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7923 + ... + 8050.

It is an arithmetic number, because the mean of its divisors is an integer number (144907).

2^1022272 is an apocalyptic number.

It is an amenable number.

1022272 is a deficient number, since it is larger than the sum of its proper divisors (1006426).

1022272 is an equidigital number, since it uses as much as digits as its factorization.

1022272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15985 (or 15975 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 1022272 is about 1011.0746757782. The cubic root of 1022272 is about 100.7369556227.

Adding to 1022272 its reverse (2722201), we get a palindrome (3744473).

The spelling of 1022272 in words is "one million, twenty-two thousand, two hundred seventy-two".