438162438 has 64 divisors (see below), whose sum is σ = 1026109440. Its totient is φ = 122148000.

The previous prime is 438162377. The next prime is 438162467. The reversal of 438162438 is 834261834.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 438162396 and 438162405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 373593 + ... + 374763.

It is an arithmetic number, because the mean of its divisors is an integer number (16032960).

Almost surely, 2^438162438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 438162438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (513054720).

438162438 is an abundant number, since it is smaller than the sum of its proper divisors (587947002).

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

438162438 is a wasteful number, since it uses less digits than its factorization.

438162438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393.

The product of its digits is 110592, while the sum is 39.

The square root of 438162438 is about 20932.3299706459. The cubic root of 438162438 is about 759.5302024963.

The spelling of 438162438 in words is "four hundred thirty-eight million, one hundred sixty-two thousand, four hundred thirty-eight".