1944206704440 has 1024 divisors, whose sum is σ = 9079780147200. Its totient is φ = 356696524800.

The previous prime is 1944206704411. The next prime is 1944206704469. The reversal of 1944206704440 is 444076024491.

1944206704440 is a `hidden beast` number, since 1 + 94 + 420 + 67 + 0 + 44 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (1944206704411) and next prime (1944206704469).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 24825745 + ... + 24903935.

It is an arithmetic number, because the mean of its divisors is an integer number (8866972800).

Almost surely, 2^{1944206704440} is an apocalyptic number.

1944206704440 is a gapful number since it is divisible by the number (10) 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 1944206704440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4539890073600).

1944206704440 is an abundant number, since it is smaller than the sum of its proper divisors (7135573442760).

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

1944206704440 is a wasteful number, since it uses less digits than its factorization.

1944206704440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78265 (or 78255 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 45.

The spelling of 1944206704440 in words is "one trillion, nine hundred forty-four billion, two hundred six million, seven hundred four thousand, four hundred forty".