438235425 has 36 divisors (see below), whose sum is σ = 795710604. Its totient is φ = 230515200.

The previous prime is 438235411. The next prime is 438235451. The reversal of 438235425 is 524532834.

It can be written as a sum of positive squares in 6 ways, for example, as 99380961 + 338854464 = 9969^2 + 18408^2 .

It is not a de Polignac number, because 438235425 - 2⁵ = 438235393 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 438235425.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3085 + ... + 29765.

Almost surely, 2^438235425 is an apocalyptic number.

438235425 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

438235425 is a deficient number, since it is larger than the sum of its proper divisors (357475179).

438235425 is a wasteful number, since it uses less digits than its factorization.

438235425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26770 (or 26762 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The square root of 438235425 is about 20934.0733016773. The cubic root of 438235425 is about 759.5723731224.

The spelling of 438235425 in words is "four hundred thirty-eight million, two hundred thirty-five thousand, four hundred twenty-five".