211397032 has 32 divisors (see below), whose sum is σ = 494176320. Its totient is φ = 82362240.

The previous prime is 211397027. The next prime is 211397041. The reversal of 211397032 is 230793112.

211397032 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170973 + ... + 172204.

It is an arithmetic number, because the mean of its divisors is an integer number (15443010).

Almost surely, 2^211397032 is an apocalyptic number.

211397032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

211397032 is an abundant number, since it is smaller than the sum of its proper divisors (282779288).

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

211397032 is a wasteful number, since it uses less digits than its factorization.

211397032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343201 (or 343197 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 211397032 is about 14539.4990285085. The cubic root of 211397032 is about 595.7073544906.

The spelling of 211397032 in words is "two hundred eleven million, three hundred ninety-seven thousand, thirty-two".