1228371 has 16 divisors (see below), whose sum is σ = 1704960. Its totient is φ = 786240.

The previous prime is 1228351. The next prime is 1228373. The reversal of 1228371 is 1738221.

It is not a de Polignac number, because 1228371 - 2⁷ = 1228243 is a prime.

It is an Ulam number.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15510 + ... + 15588.

It is an arithmetic number, because the mean of its divisors is an integer number (106560).

2^1228371 is an apocalyptic number.

1228371 is a deficient number, since it is larger than the sum of its proper divisors (476589).

1228371 is an equidigital number, since it uses as much as digits as its factorization.

1228371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226.

The product of its digits is 672, while the sum is 24.

The square root of 1228371 is about 1108.3189974010. The cubic root of 1228371 is about 107.0968058602.

The spelling of 1228371 in words is "one million, two hundred twenty-eight thousand, three hundred seventy-one".