1380834 has 64 divisors (see below), whose sum is σ = 3790080. Its totient is φ = 362880.

The previous prime is 1380817. The next prime is 1380853. The reversal of 1380834 is 4380831.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1380798 and 1380807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4774 + ... + 5054.

It is an arithmetic number, because the mean of its divisors is an integer number (59220).

2^1380834 is an apocalyptic number.

1380834 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1380834, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1895040).

1380834 is an abundant number, since it is smaller than the sum of its proper divisors (2409246).

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

1380834 is a wasteful number, since it uses less digits than its factorization.

1380834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312 (or 306 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 1380834 is about 1175.0889328047. The cubic root of 1380834 is about 111.3560517142.

The spelling of 1380834 in words is "one million, three hundred eighty thousand, eight hundred thirty-four".