210969132 has 96 divisors (see below), whose sum is σ = 553512960. Its totient is φ = 61999680.

The previous prime is 210969127. The next prime is 210969163. The reversal of 210969132 is 231969012.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 210969093 and 210969102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 802033 + ... + 802295.

It is an arithmetic number, because the mean of its divisors is an integer number (5765760).

Almost surely, 2^210969132 is an apocalyptic number.

210969132 is a gapful number since it is divisible by the number (22) 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 210969132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276756480).

210969132 is an abundant number, since it is smaller than the sum of its proper divisors (342543828).

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

210969132 is a wasteful number, since it uses less digits than its factorization.

210969132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443 (or 441 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 210969132 is about 14524.7764870927. The cubic root of 210969132 is about 595.3051486572.

The spelling of 210969132 in words is "two hundred ten million, nine hundred sixty-nine thousand, one hundred thirty-two".