438234225 has 96 divisors (see below), whose sum is σ = 881193600. Its totient is φ = 189235200.

The previous prime is 438234217. The next prime is 438234271. The reversal of 438234225 is 522432834.

It is not a de Polignac number, because 438234225 - 2³ = 438234217 is a prime.

It is a super-2 number, since 2×438234225² = 384098471922701250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 310321 + ... + 311729.

It is an arithmetic number, because the mean of its divisors is an integer number (9179100).

It is the magic constant of a 957 × 957 magic square.

Almost surely, 2^438234225 is an apocalyptic number.

It is an amenable number.

438234225 is an abundant number, since it is smaller than the sum of its proper divisors (442959375).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

438234225 is a wasteful number, since it uses less digits than its factorization.

438234225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475 (or 1470 counting only the distinct ones).

The product of its digits is 46080, while the sum is 33.

The square root of 438234225 is about 20934.0446402505. The cubic root of 438234225 is about 759.5716798211.

The spelling of 438234225 in words is "four hundred thirty-eight million, two hundred thirty-four thousand, two hundred twenty-five".