1381422834 has 48 divisors (see below), whose sum is σ = 3283506720. Its totient is φ = 416263680.

The previous prime is 1381422829. The next prime is 1381422841. The reversal of 1381422834 is 4382241831.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15954 + ... + 54930.

It is an arithmetic number, because the mean of its divisors is an integer number (68406390).

Almost surely, 2^1381422834 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1381422834, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1641753360).

1381422834 is an abundant number, since it is smaller than the sum of its proper divisors (1902083886).

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

1381422834 is a wasteful number, since it uses less digits than its factorization.

1381422834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39175 (or 39172 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 1381422834 is about 37167.4970101566. The cubic root of 1381422834 is about 1113.7187811842.

The spelling of 1381422834 in words is "one billion, three hundred eighty-one million, four hundred twenty-two thousand, eight hundred thirty-four".