1369944 has 48 divisors (see below), whose sum is σ = 3790800. Its totient is φ = 446784.

The previous prime is 1369943. The next prime is 1369961. The reversal of 1369944 is 4499631.

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

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1369899 and 1369908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1369943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3637 + ... + 3995.

It is an arithmetic number, because the mean of its divisors is an integer number (78975).

2^1369944 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 1369944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1895400).

1369944 is an abundant number, since it is smaller than the sum of its proper divisors (2420856).

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

1369944 is a wasteful number, since it uses less digits than its factorization.

1369944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424 (or 417 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 1369944 is about 1170.4460688131. The cubic root of 1369944 is about 111.0625408455.

The spelling of 1369944 in words is "one million, three hundred sixty-nine thousand, nine hundred forty-four".