438253214 has 16 divisors (see below), whose sum is σ = 752467968. Its totient is φ = 187528632.

The previous prime is 438253213. The next prime is 438253229. The reversal of 438253214 is 412352834.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438253213) 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 7 ways as a sum of consecutive naturals, for example, 15134 + ... + 33249.

It is an arithmetic number, because the mean of its divisors is an integer number (47029248).

Almost surely, 2^438253214 is an apocalyptic number.

438253214 is a deficient number, since it is larger than the sum of its proper divisors (314214754).

438253214 is a wasteful number, since it uses less digits than its factorization.

438253214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49039.

The product of its digits is 23040, while the sum is 32.

The square root of 438253214 is about 20934.4981788435. The cubic root of 438253214 is about 759.5826505893.

The spelling of 438253214 in words is "four hundred thirty-eight million, two hundred fifty-three thousand, two hundred fourteen".