1396281 has 8 divisors (see below), whose sum is σ = 1869984. Its totient is φ = 926720.

The previous prime is 1396273. The next prime is 1396301. The reversal of 1396281 is 1826931.

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

It is a cyclic number.

It is not a de Polignac number, because 1396281 - 2³ = 1396273 is a prime.

It is a super-2 number, since 2×1396281² = 3899201261922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1396211) by changing a digit.

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, 135 + ... + 1676.

It is an arithmetic number, because the mean of its divisors is an integer number (233748).

2^1396281 is an apocalyptic number.

It is an amenable number.

1396281 is a deficient number, since it is larger than the sum of its proper divisors (473703).

1396281 is a wasteful number, since it uses less digits than its factorization.

1396281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2071.

The product of its digits is 2592, while the sum is 30.

The square root of 1396281 is about 1181.6433472076. The cubic root of 1396281 is about 111.7697491234.

The spelling of 1396281 in words is "one million, three hundred ninety-six thousand, two hundred eighty-one".