1397226 has 8 divisors (see below), whose sum is σ = 2794464. Its totient is φ = 465740.

The previous prime is 1397219. The next prime is 1397233. The reversal of 1397226 is 6227931.

It is an interprime number because it is at equal distance from previous prime (1397219) and next prime (1397233).

It is a sphenic number, since it is the product of 3 distinct primes.

1397226 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1397193 and 1397202.

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 3 ways as a sum of consecutive naturals, for example, 116430 + ... + 116441.

It is an arithmetic number, because the mean of its divisors is an integer number (349308).

2^1397226 is an apocalyptic number.

1397226 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1397226 is a wasteful number, since it uses less digits than its factorization.

1397226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232876.

The product of its digits is 4536, while the sum is 30.

The square root of 1397226 is about 1182.0431464206. The cubic root of 1397226 is about 111.7949586128.

The spelling of 1397226 in words is "one million, three hundred ninety-seven thousand, two hundred twenty-six".