1944347328 has 280 divisors, whose sum is σ = 7187330304. Its totient is φ = 504921600.

The previous prime is 1944347323. The next prime is 1944347329. The reversal of 1944347328 is 8237434491.

1944347328 is a `hidden beast` number, since 194 + 434 + 7 + 3 + 28 = 666.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1944347323) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 396733 + ... + 401603.

Almost surely, 2^1944347328 is an apocalyptic number.

1944347328 is a gapful number since it is divisible by the number (18) 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 1944347328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3593665152).

1944347328 is an abundant number, since it is smaller than the sum of its proper divisors (5242982976).

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

1944347328 is a wasteful number, since it uses less digits than its factorization.

1944347328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4913 (or 4894 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 1944347328 is about 44094.7539736872. The cubic root of 1944347328 is about 1248.1246177335.

The spelling of 1944347328 in words is "one billion, nine hundred forty-four million, three hundred forty-seven thousand, three hundred twenty-eight".