438045342 has 96 divisors (see below), whose sum is σ = 1069189632. Its totient is φ = 117177408.

The previous prime is 438045329. The next prime is 438045379. The reversal of 438045342 is 243540834.

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 47 ways as a sum of consecutive naturals, for example, 2531968 + ... + 2532140.

It is an arithmetic number, because the mean of its divisors is an integer number (11137392).

Almost surely, 2^438045342 is an apocalyptic number.

438045342 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 438045342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (534594816).

438045342 is an abundant number, since it is smaller than the sum of its proper divisors (631144290).

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

438045342 is a wasteful number, since it uses less digits than its factorization.

438045342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390 (or 371 counting only the distinct ones).

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

The square root of 438045342 is about 20929.5327707047. The cubic root of 438045342 is about 759.4625366683.

The spelling of 438045342 in words is "four hundred thirty-eight million, forty-five thousand, three hundred forty-two".