213995232 has 144 divisors (see below), whose sum is σ = 685601280. Its totient is φ = 62726400.

The previous prime is 213995213. The next prime is 213995273. The reversal of 213995232 is 232599312.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97119 + ... + 99297.

It is an arithmetic number, because the mean of its divisors is an integer number (4761120).

Almost surely, 2^213995232 is an apocalyptic number.

213995232 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 213995232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (342800640).

213995232 is an abundant number, since it is smaller than the sum of its proper divisors (471606048).

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

213995232 is a wasteful number, since it uses less digits than its factorization.

213995232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2237 (or 2226 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 213995232 is about 14628.5758705350. The cubic root of 213995232 is about 598.1379606603.

The spelling of 213995232 in words is "two hundred thirteen million, nine hundred ninety-five thousand, two hundred thirty-two".