1940888544 has 96 divisors (see below), whose sum is σ = 5921475840. Its totient is φ = 545129472.

The previous prime is 1940888519. The next prime is 1940888581. The reversal of 1940888544 is 4458880491.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15172 + ... + 64124.

It is an arithmetic number, because the mean of its divisors is an integer number (61682040).

Almost surely, 2^1940888544 is an apocalyptic number.

1940888544 is a gapful number since it is divisible by the number (14) 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 1940888544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2960737920).

1940888544 is an abundant number, since it is smaller than the sum of its proper divisors (3980587296).

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

1940888544 is a wasteful number, since it uses less digits than its factorization.

1940888544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49032 (or 49024 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 51.

The square root of 1940888544 is about 44055.5166125651. The cubic root of 1940888544 is about 1247.3840854651.

The spelling of 1940888544 in words is "one billion, nine hundred forty million, eight hundred eighty-eight thousand, five hundred forty-four".