213701438 has 4 divisors (see below), whose sum is σ = 320552160. Its totient is φ = 106850718.

The previous prime is 213701431. The next prime is 213701489. The reversal of 213701438 is 834107312.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 213701438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213701431) 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 as a sum of consecutive naturals, namely, 53425358 + ... + 53425361.

It is an arithmetic number, because the mean of its divisors is an integer number (80138040).

Almost surely, 2^213701438 is an apocalyptic number.

213701438 is a deficient number, since it is larger than the sum of its proper divisors (106850722).

213701438 is a wasteful number, since it uses less digits than its factorization.

213701438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106850721.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 213701438 is about 14618.5306375162. The cubic root of 213701438 is about 597.8641074793.

The spelling of 213701438 in words is "two hundred thirteen million, seven hundred one thousand, four hundred thirty-eight".