438102225 has 36 divisors (see below), whose sum is σ = 856030032. Its totient is φ = 212412000.

The previous prime is 438102221. The next prime is 438102227. The reversal of 438102225 is 522201834.

438102225 is a `hidden beast` number, since 438 + 1 + 0 + 2 + 225 = 666.

It is not a de Polignac number, because 438102225 - 2² = 438102221 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (438102221) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 86031 + ... + 90980.

It is an arithmetic number, because the mean of its divisors is an integer number (23778612).

Almost surely, 2^438102225 is an apocalyptic number.

438102225 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

438102225 is a deficient number, since it is larger than the sum of its proper divisors (417927807).

438102225 is a wasteful number, since it uses less digits than its factorization.

438102225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177038 (or 177030 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 438102225 is about 20930.8916436926. The cubic root of 438102225 is about 759.4954089409.

The spelling of 438102225 in words is "four hundred thirty-eight million, one hundred two thousand, two hundred twenty-five".