1368939 has 16 divisors (see below), whose sum is σ = 2145024. Its totient is φ = 765600.

The previous prime is 1368911. The next prime is 1368943. The reversal of 1368939 is 9398631.

It is not a de Polignac number, because 1368939 - 2⁵ = 1368907 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 1368897 and 1368906.

It is not an unprimeable number, because it can be changed into a prime (1368979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1167 + ... + 2024.

It is an arithmetic number, because the mean of its divisors is an integer number (134064).

2^1368939 is an apocalyptic number.

1368939 is a deficient number, since it is larger than the sum of its proper divisors (776085).

1368939 is a wasteful number, since it uses less digits than its factorization.

1368939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3218.

The product of its digits is 34992, while the sum is 39.

The square root of 1368939 is about 1170.0166665480. The cubic root of 1368939 is about 111.0353754628.

Subtracting from 1368939 its sum of digits (39), we obtain a square (1368900 = 1170²).

The spelling of 1368939 in words is "one million, three hundred sixty-eight thousand, nine hundred thirty-nine".