1366838 has 8 divisors (see below), whose sum is σ = 2236680. Its totient is φ = 621280.

The previous prime is 1366837. The next prime is 1366843. The reversal of 1366838 is 8386631.

It is a happy number.

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

It is a super-2 number, since 2×1366838² = 3736492236488, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1366798 and 1366807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1366831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31043 + ... + 31086.

It is an arithmetic number, because the mean of its divisors is an integer number (279585).

2^1366838 is an apocalyptic number.

1366838 is a deficient number, since it is larger than the sum of its proper divisors (869842).

1366838 is a wasteful number, since it uses less digits than its factorization.

1366838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62142.

The product of its digits is 20736, while the sum is 35.

The square root of 1366838 is about 1169.1184713279. The cubic root of 1366838 is about 110.9785419658.

The spelling of 1366838 in words is "one million, three hundred sixty-six thousand, eight hundred thirty-eight".