1982889722 has 8 divisors (see below), whose sum is σ = 3244728672. Its totient is φ = 901313500.

The previous prime is 1982889679. The next prime is 1982889737. The reversal of 1982889722 is 2279882891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1982889722² = 7863703299226474568, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 45065654 + ... + 45065697.

It is an arithmetic number, because the mean of its divisors is an integer number (405591084).

Almost surely, 2^1982889722 is an apocalyptic number.

1982889722 is a deficient number, since it is larger than the sum of its proper divisors (1261838950).

1982889722 is a wasteful number, since it uses less digits than its factorization.

1982889722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90131364.

The product of its digits is 2322432, while the sum is 56.

The square root of 1982889722 is about 44529.6499200252. The cubic root of 1982889722 is about 1256.3178216662.

The spelling of 1982889722 in words is "one billion, nine hundred eighty-two million, eight hundred eighty-nine thousand, seven hundred twenty-two".