1273228 has 24 divisors (see below), whose sum is σ = 2560320. Its totient is φ = 547920.

The previous prime is 1273213. The next prime is 1273231. The reversal of 1273228 is 8223721.

It is a super-2 number, since 2×1273228² = 3242219079968, which contains 22 as substring.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 75 + ... + 1597.

It is an arithmetic number, because the mean of its divisors is an integer number (106680).

2^1273228 is an apocalyptic number.

It is an amenable number.

1273228 is an abundant number, since it is smaller than the sum of its proper divisors (1287092).

1273228 is a wasteful number, since it uses less digits than its factorization.

1273228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557 (or 1555 counting only the distinct ones).

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

The square root of 1273228 is about 1128.3740514563. The cubic root of 1273228 is about 108.3848864429.

Adding to 1273228 its reverse (8223721), we get a palindrome (9496949).

The spelling of 1273228 in words is "one million, two hundred seventy-three thousand, two hundred twenty-eight".