1396818 has 16 divisors (see below), whose sum is σ = 3104160. Its totient is φ = 465588.

The previous prime is 1396817. The next prime is 1396819. The reversal of 1396818 is 8186931.

It is an interprime number because it is at equal distance from previous prime (1396817) and next prime (1396819).

It is a super-2 number, since 2×1396818² = 3902201050248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1396817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12880 + ... + 12987.

It is an arithmetic number, because the mean of its divisors is an integer number (194010).

2^1396818 is an apocalyptic number.

1396818 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1396818 is an abundant number, since it is smaller than the sum of its proper divisors (1707342).

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

1396818 is a wasteful number, since it uses less digits than its factorization.

1396818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25878 (or 25872 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 1396818 is about 1181.8705512872. The cubic root of 1396818 is about 111.7840759106.

The spelling of 1396818 in words is "one million, three hundred ninety-six thousand, eight hundred eighteen".