1944569364 has 192 divisors, whose sum is σ = 5225472000. Its totient is φ = 559802880.

The previous prime is 1944569357. The next prime is 1944569387. The reversal of 1944569364 is 4639654491.

It is a super-2 number, since 2×1944569364² = 7562700022814728992, which contains 22 as substring.

It is a congruent 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 63 ways as a sum of consecutive naturals, for example, 10863427 + ... + 10863605.

It is an arithmetic number, because the mean of its divisors is an integer number (27216000).

Almost surely, 2^1944569364 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1944569364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2612736000).

1944569364 is an abundant number, since it is smaller than the sum of its proper divisors (3280902636).

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

1944569364 is a wasteful number, since it uses less digits than its factorization.

1944569364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318 (or 316 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 51.

The square root of 1944569364 is about 44097.2716162803. The cubic root of 1944569364 is about 1248.1721260577.

The spelling of 1944569364 in words is "one billion, nine hundred forty-four million, five hundred sixty-nine thousand, three hundred sixty-four".