213413438 has 16 divisors (see below), whose sum is σ = 366164064. Its totient is φ = 91384800.

The previous prime is 213413437. The next prime is 213413471. The reversal of 213413438 is 834314312.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 213413438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213413437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12356 + ... + 24072.

It is an arithmetic number, because the mean of its divisors is an integer number (22885254).

Almost surely, 2^213413438 is an apocalyptic number.

213413438 is a deficient number, since it is larger than the sum of its proper divisors (152750626).

213413438 is a wasteful number, since it uses less digits than its factorization.

213413438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13027.

The product of its digits is 6912, while the sum is 29.

The square root of 213413438 is about 14608.6768052415. The cubic root of 213413438 is about 597.5954113142.

The spelling of 213413438 in words is "two hundred thirteen million, four hundred thirteen thousand, four hundred thirty-eight".