2142443776 has 72 divisors (see below), whose sum is σ = 4676410368. Its totient is φ = 971520000.

The previous prime is 2142443761. The next prime is 2142443777. The reversal of 2142443776 is 6773442412.

It is a super-2 number, since 2×2142443776² = 9180130666642276352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2142443777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1860801 + ... + 1861951.

It is an arithmetic number, because the mean of its divisors is an integer number (64950144).

Almost surely, 2^2142443776 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 2142443776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2338205184).

2142443776 is an abundant number, since it is smaller than the sum of its proper divisors (2533966592).

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

2142443776 is a wasteful number, since it uses less digits than its factorization.

2142443776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839 (or 1825 counting only the distinct ones).

The product of its digits is 225792, while the sum is 40.

The square root of 2142443776 is about 46286.5399009258. The cubic root of 2142443776 is about 1289.1490844931.

The spelling of 2142443776 in words is "two billion, one hundred forty-two million, four hundred forty-three thousand, seven hundred seventy-six".