1944382146 has 16 divisors (see below), whose sum is σ = 4444302144. Its totient is φ = 555537744.

The previous prime is 1944382109. The next prime is 1944382147. The reversal of 1944382146 is 6412834491.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 46294813 = 1944382146 / (1 + 9 + 4 + 4 + 3 + 8 + 2 + 1 + 4 + 6).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1944382098 and 1944382107.

It is not an unprimeable number, because it can be changed into a prime (1944382147) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 23147365 + ... + 23147448.

It is an arithmetic number, because the mean of its divisors is an integer number (277768884).

Almost surely, 2^1944382146 is an apocalyptic number.

1944382146 is an abundant number, since it is smaller than the sum of its proper divisors (2499919998).

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

1944382146 is a wasteful number, since it uses less digits than its factorization.

1944382146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46294825.

The product of its digits is 165888, while the sum is 42.

The square root of 1944382146 is about 44095.1487807899. The cubic root of 1944382146 is about 1248.1320678674.

The spelling of 1944382146 in words is "one billion, nine hundred forty-four million, three hundred eighty-two thousand, one hundred forty-six".