213401338 has 32 divisors (see below), whose sum is σ = 335280384. Its totient is φ = 101797632.

The previous prime is 213401333. The next prime is 213401341. The reversal of 213401338 is 833104312.

It is not an unprimeable number, because it can be changed into a prime (213401333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 939981 + ... + 940207.

It is an arithmetic number, because the mean of its divisors is an integer number (10477512).

Almost surely, 2^213401338 is an apocalyptic number.

213401338 is a deficient number, since it is larger than the sum of its proper divisors (121879046).

213401338 is a wasteful number, since it uses less digits than its factorization.

213401338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 213401338 is about 14608.2626619321. The cubic root of 213401338 is about 597.5841170533.

The spelling of 213401338 in words is "two hundred thirteen million, four hundred one thousand, three hundred thirty-eight".