213403342 has 8 divisors (see below), whose sum is σ = 320168232. Its totient is φ = 106680600.

The previous prime is 213403321. The next prime is 213403357. The reversal of 213403342 is 243304312.

It is a happy number.

213403342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 10617 + ... + 23227.

It is an arithmetic number, because the mean of its divisors is an integer number (40021029).

Almost surely, 2^213403342 is an apocalyptic number.

213403342 is a deficient number, since it is larger than the sum of its proper divisors (106764890).

213403342 is a wasteful number, since it uses less digits than its factorization.

213403342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21074.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 213403342 is about 14608.3312530898. The cubic root of 213403342 is about 597.5859876364.

Adding to 213403342 its reverse (243304312), we get a palindrome (456707654).

The spelling of 213403342 in words is "two hundred thirteen million, four hundred three thousand, three hundred forty-two".