1365630 has 48 divisors (see below), whose sum is σ = 3816720. Its totient is φ = 311808.

The previous prime is 1365583. The next prime is 1365659. The reversal of 1365630 is 365631.

It is a self number, because there is not a number n which added to its sum of digits gives 1365630.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1006 + ... + 1934.

It is an arithmetic number, because the mean of its divisors is an integer number (79515).

2^1365630 is an apocalyptic number.

1365630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1365630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1908360).

1365630 is an abundant number, since it is smaller than the sum of its proper divisors (2451090).

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

1365630 is a wasteful number, since it uses less digits than its factorization.

1365630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953 (or 946 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 1365630 is about 1168.6017285628. The cubic root of 1365630 is about 110.9458383602.

Subtracting from 1365630 its reverse (365631), we obtain a palindrome (999999).

The spelling of 1365630 in words is "one million, three hundred sixty-five thousand, six hundred thirty".