438964554 has 64 divisors (see below), whose sum is σ = 1038597120. Its totient is φ = 121080960.

The previous prime is 438964553. The next prime is 438964583. The reversal of 438964554 is 455469834.

It is not an unprimeable number, because it can be changed into a prime (438964553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 159369 + ... + 162099.

It is an arithmetic number, because the mean of its divisors is an integer number (16228080).

Almost surely, 2^438964554 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 438964554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (519298560).

438964554 is an abundant number, since it is smaller than the sum of its proper divisors (599632566).

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

438964554 is a wasteful number, since it uses less digits than its factorization.

438964554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2875.

The product of its digits is 2073600, while the sum is 48.

The square root of 438964554 is about 20951.4809500426. The cubic root of 438964554 is about 759.9933944486.

The spelling of 438964554 in words is "four hundred thirty-eight million, nine hundred sixty-four thousand, five hundred fifty-four".