438294213 has 64 divisors (see below), whose sum is σ = 771686400. Its totient is φ = 240589440.

The previous prime is 438294191. The next prime is 438294239. The reversal of 438294213 is 312492834.

438294213 is a `hidden beast` number, since 438 + 2 + 9 + 4 + 213 = 666.

It is not a de Polignac number, because 438294213 - 2¹³ = 438286021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438294293) 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 63 ways as a sum of consecutive naturals, for example, 1400145 + ... + 1400457.

It is an arithmetic number, because the mean of its divisors is an integer number (12057600).

Almost surely, 2^438294213 is an apocalyptic number.

It is an amenable number.

438294213 is a deficient number, since it is larger than the sum of its proper divisors (333392187).

438294213 is a wasteful number, since it uses less digits than its factorization.

438294213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599 (or 593 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 438294213 is about 20935.4773769312. The cubic root of 438294213 is about 759.6063364076.

The spelling of 438294213 in words is "four hundred thirty-eight million, two hundred ninety-four thousand, two hundred thirteen".