1365738 has 16 divisors (see below), whose sum is σ = 2979936. Its totient is φ = 413840.

The previous prime is 1365733. The next prime is 1365761. The reversal of 1365738 is 8375631.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 1365699 and 1365708.

It is not an unprimeable number, because it can be changed into a prime (1365731) 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, 10281 + ... + 10412.

It is an arithmetic number, because the mean of its divisors is an integer number (186246).

2^1365738 is an apocalyptic number.

1365738 is an abundant number, since it is smaller than the sum of its proper divisors (1614198).

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

1365738 is a wasteful number, since it uses less digits than its factorization.

1365738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20709.

The product of its digits is 15120, while the sum is 33.

The square root of 1365738 is about 1168.6479367200. The cubic root of 1365738 is about 110.9487629774.

It can be divided in two parts, 13657 and 38, that added together give a triangular number (13695 = T₁₆₅).

The spelling of 1365738 in words is "one million, three hundred sixty-five thousand, seven hundred thirty-eight".