211001982 has 16 divisors (see below), whose sum is σ = 425876880. Its totient is φ = 69688512.

The previous prime is 211001981. The next prime is 211002013. The reversal of 211001982 is 289100112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211001981) 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, 160663 + ... + 161970.

It is an arithmetic number, because the mean of its divisors is an integer number (26617305).

Almost surely, 2^211001982 is an apocalyptic number.

211001982 is an abundant number, since it is smaller than the sum of its proper divisors (214874898).

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

211001982 is a wasteful number, since it uses less digits than its factorization.

211001982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322747.

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 211001982 is about 14525.9072694273. The cubic root of 211001982 is about 595.3360453718.

The spelling of 211001982 in words is "two hundred eleven million, one thousand, nine hundred eighty-two".