1366938 has 12 divisors (see below), whose sum is σ = 2961738. Its totient is φ = 455640.

The previous prime is 1366933. The next prime is 1366943. The reversal of 1366938 is 8396631.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1366933) and next prime (1366943).

It can be written as a sum of positive squares in only one way, i.e., 927369 + 439569 = 963^2 + 663^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1366933) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37953 + ... + 37988.

2^1366938 is an apocalyptic number.

1366938 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1366938 is an abundant number, since it is smaller than the sum of its proper divisors (1594800).

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

1366938 is a wasteful number, since it uses less digits than its factorization.

1366938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75949 (or 75946 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 1366938 is about 1169.1612378111. The cubic root of 1366938 is about 110.9812483542.

It can be divided in two parts, 1366 and 938, that added together give a square (2304 = 48²).

The spelling of 1366938 in words is "one million, three hundred sixty-six thousand, nine hundred thirty-eight".