1369788 has 48 divisors (see below), whose sum is σ = 3816960. Its totient is φ = 373824.

The previous prime is 1369787. The next prime is 1369789. The reversal of 1369788 is 8879631.

It is an interprime number because it is at equal distance from previous prime (1369787) and next prime (1369789).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1369783) 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, 1578 + ... + 2286.

It is an arithmetic number, because the mean of its divisors is an integer number (79520).

2^1369788 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1369788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1908480).

1369788 is an abundant number, since it is smaller than the sum of its proper divisors (2447172).

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

1369788 is a wasteful number, since it uses less digits than its factorization.

1369788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746 (or 744 counting only the distinct ones).

The product of its digits is 72576, while the sum is 42.

The square root of 1369788 is about 1170.3794256565. The cubic root of 1369788 is about 111.0583250007.

The spelling of 1369788 in words is "one million, three hundred sixty-nine thousand, seven hundred eighty-eight".