1369656 has 64 divisors (see below), whose sum is σ = 4039200. Its totient is φ = 428544.

The previous prime is 1369651. The next prime is 1369657. The reversal of 1369656 is 6569631.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

Its product of digits (29160) is a multiple of the sum of its prime factors (405).

It is a self number, because there is not a number n which added to its sum of digits gives 1369656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1369651) 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, 3486 + ... + 3858.

2^1369656 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 1369656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2019600).

1369656 is an abundant number, since it is smaller than the sum of its proper divisors (2669544).

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

1369656 is a wasteful number, since it uses less digits than its factorization.

1369656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405 (or 395 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 1369656 is about 1170.3230323291. The cubic root of 1369656 is about 111.0547574973.

It can be divided in two parts, 1369 and 656, that added together give a square (2025 = 45²).

The spelling of 1369656 in words is "one million, three hundred sixty-nine thousand, six hundred fifty-six".