1941985800 has 192 divisors, whose sum is σ = 6753585600. Its totient is φ = 512870400.

The previous prime is 1941985757. The next prime is 1941985849. The reversal of 1941985800 is 85891491.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 576120 + ... + 579480.

It is an arithmetic number, because the mean of its divisors is an integer number (35174925).

Almost surely, 2^1941985800 is an apocalyptic number.

1941985800 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 1941985800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3376792800).

1941985800 is an abundant number, since it is smaller than the sum of its proper divisors (4811599800).

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

1941985800 is a wasteful number, since it uses less digits than its factorization.

1941985800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3493 (or 3478 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The square root of 1941985800 is about 44067.9679585978. The cubic root of 1941985800 is about 1247.6191052849.

The spelling of 1941985800 in words is "one billion, nine hundred forty-one million, nine hundred eighty-five thousand, eight hundred".