438981106 has 16 divisors (see below), whose sum is σ = 701654616. Its totient is φ = 205261056.

The previous prime is 438981007. The next prime is 438981203. The reversal of 438981106 is 601189834.

It can be written as a sum of positive squares in 4 ways, for example, as 438525481 + 455625 = 20941^2 + 675^2 .

It is a super-2 number, since 2×438981106² = 385408822849966472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35781 + ... + 46456.

Almost surely, 2^438981106 is an apocalyptic number.

438981106 is a deficient number, since it is larger than the sum of its proper divisors (262673510).

438981106 is a wasteful number, since it uses less digits than its factorization.

438981106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82413.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 438981106 is about 20951.8759541956. The cubic root of 438981106 is about 760.0029466645.

The spelling of 438981106 in words is "four hundred thirty-eight million, nine hundred eighty-one thousand, one hundred six".