213851232 has 192 divisors, whose sum is σ = 750758400. Its totient is φ = 57853440.

The previous prime is 213851227. The next prime is 213851233. The reversal of 213851232 is 232158312.

213851232 is digitally balanced in base 2, 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 (27).

It is a junction number, because it is equal to n+sod(n) for n = 213851196 and 213851205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213851233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113982 + ... + 115842.

It is an arithmetic number, because the mean of its divisors is an integer number (3910200).

Almost surely, 2^213851232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213851232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (375379200).

213851232 is an abundant number, since it is smaller than the sum of its proper divisors (536907168).

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

213851232 is a wasteful number, since it uses less digits than its factorization.

213851232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1906 (or 1892 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 213851232 is about 14623.6531687537. The cubic root of 213851232 is about 598.0037657805.

The spelling of 213851232 in words is "two hundred thirteen million, eight hundred fifty-one thousand, two hundred thirty-two".