438225830 has 64 divisors (see below), whose sum is σ = 970330752. Its totient is φ = 139069440.

The previous prime is 438225829. The next prime is 438225833. The reversal of 438225830 is 38522834.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438225833) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69572 + ... + 75608.

It is an arithmetic number, because the mean of its divisors is an integer number (15161418).

Almost surely, 2^438225830 is an apocalyptic number.

438225830 is an abundant number, since it is smaller than the sum of its proper divisors (532104922).

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

438225830 is a wasteful number, since it uses less digits than its factorization.

438225830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6129.

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 438225830 is about 20933.8441285876. The cubic root of 438225830 is about 759.5668295647.

The spelling of 438225830 in words is "four hundred thirty-eight million, two hundred twenty-five thousand, eight hundred thirty".