1336840 has 32 divisors (see below), whose sum is σ = 3168000. Its totient is φ = 506304.

The previous prime is 1336817. The next prime is 1336861. The reversal of 1336840 is 486331.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120 + ... + 1639.

It is an arithmetic number, because the mean of its divisors is an integer number (99000).

2^1336840 is an apocalyptic number.

1336840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1336840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1584000).

1336840 is an abundant number, since it is smaller than the sum of its proper divisors (1831160).

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

1336840 is a wasteful number, since it uses less digits than its factorization.

1336840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1789 (or 1785 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 1336840 is about 1156.2179725294. The cubic root of 1336840 is about 110.1606468158.

The spelling of 1336840 in words is "one million, three hundred thirty-six thousand, eight hundred forty".