1375836 has 48 divisors (see below), whose sum is σ = 4005120. Its totient is φ = 357120.

The previous prime is 1375823. The next prime is 1375853. The reversal of 1375836 is 6385731.

It is a happy number.

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

Its product of digits (15120) is a multiple of the sum of its prime divisors (1512).

It is a junction number, because it is equal to n+sod(n) for n = 1375797 and 1375806.

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 15 ways as a sum of consecutive naturals, for example, 180 + ... + 1668.

It is an arithmetic number, because the mean of its divisors is an integer number (83440).

2^1375836 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 1375836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2002560).

1375836 is an abundant number, since it is smaller than the sum of its proper divisors (2629284).

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

1375836 is a wasteful number, since it uses less digits than its factorization.

1375836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1514 (or 1512 counting only the distinct ones).

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

The square root of 1375836 is about 1172.9603573864. The cubic root of 1375836 is about 111.2215362942.

It can be divided in two parts, 1375 and 836, that added together give a triangular number (2211 = T₆₆).

The spelling of 1375836 in words is "one million, three hundred seventy-five thousand, eight hundred thirty-six".