438734445 has 16 divisors (see below), whose sum is σ = 702499392. Its totient is φ = 233816960.

The previous prime is 438734423. The next prime is 438734447. The reversal of 438734445 is 544437834.

It is not a de Polignac number, because 438734445 - 2⁶ = 438734381 is a prime.

It is a super-3 number, since 3×438734445³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 438734397 and 438734406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438734447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11290 + ... + 31700.

It is an arithmetic number, because the mean of its divisors is an integer number (43906212).

Almost surely, 2^438734445 is an apocalyptic number.

It is an amenable number.

438734445 is a deficient number, since it is larger than the sum of its proper divisors (263764947).

438734445 is a wasteful number, since it uses less digits than its factorization.

438734445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21852.

The product of its digits is 645120, while the sum is 42.

The square root of 438734445 is about 20945.9887568002. The cubic root of 438734445 is about 759.8605728761.

The spelling of 438734445 in words is "four hundred thirty-eight million, seven hundred thirty-four thousand, four hundred forty-five".