1942443880 has 128 divisors (see below), whose sum is σ = 4978713600. Its totient is φ = 676915200.

The previous prime is 1942443869. The next prime is 1942443913. The reversal of 1942443880 is 883442491.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 659451 + ... + 662389.

It is an arithmetic number, because the mean of its divisors is an integer number (38896200).

Almost surely, 2^1942443880 is an apocalyptic number.

1942443880 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 1942443880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2489356800).

1942443880 is an abundant number, since it is smaller than the sum of its proper divisors (3036269720).

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

1942443880 is a wasteful number, since it uses less digits than its factorization.

1942443880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3035 (or 3031 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 43.

The square root of 1942443880 is about 44073.1650780835. The cubic root of 1942443880 is about 1247.7171946443.

The spelling of 1942443880 in words is "one billion, nine hundred forty-two million, four hundred forty-three thousand, eight hundred eighty".