213367438 has 4 divisors (see below), whose sum is σ = 320051160. Its totient is φ = 106683718.

The previous prime is 213367433. The next prime is 213367457. The reversal of 213367438 is 834763312.

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

It is a junction number, because it is equal to n+sod(n) for n = 213367397 and 213367406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213367433) 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, 53341858 + ... + 53341861.

It is an arithmetic number, because the mean of its divisors is an integer number (80012790).

Almost surely, 2^213367438 is an apocalyptic number.

213367438 is a deficient number, since it is larger than the sum of its proper divisors (106683722).

213367438 is a wasteful number, since it uses less digits than its factorization.

213367438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106683721.

The product of its digits is 72576, while the sum is 37.

The square root of 213367438 is about 14607.1023136007. The cubic root of 213367438 is about 597.5524721808.

The spelling of 213367438 in words is "two hundred thirteen million, three hundred sixty-seven thousand, four hundred thirty-eight".