213855382 has 8 divisors (see below), whose sum is σ = 345458736. Its totient is φ = 98702472.

The previous prime is 213855377. The next prime is 213855407. The reversal of 213855382 is 283558312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4112578 + ... + 4112629.

It is an arithmetic number, because the mean of its divisors is an integer number (43182342).

Almost surely, 2^213855382 is an apocalyptic number.

213855382 is a deficient number, since it is larger than the sum of its proper divisors (131603354).

213855382 is a wasteful number, since it uses less digits than its factorization.

213855382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8225222.

The product of its digits is 57600, while the sum is 37.

The square root of 213855382 is about 14623.7950614743. The cubic root of 213855382 is about 598.0076340453.

The spelling of 213855382 in words is "two hundred thirteen million, eight hundred fifty-five thousand, three hundred eighty-two".