438788690241 has 16 divisors (see below), whose sum is σ = 639754120128. Its totient is φ = 265300862400.

The previous prime is 438788690233. The next prime is 438788690393. The reversal of 438788690241 is 142096887834.

It is a happy number.

It is not a de Polignac number, because 438788690241 - 2³ = 438788690233 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (438788690941) 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, 15777826 + ... + 15805611.

It is an arithmetic number, because the mean of its divisors is an integer number (39984632508).

Almost surely, 2^438788690241 is an apocalyptic number.

It is an amenable number.

438788690241 is a deficient number, since it is larger than the sum of its proper divisors (200965429887).

438788690241 is a wasteful number, since it uses less digits than its factorization.

438788690241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31583872.

The product of its (nonzero) digits is 18579456, while the sum is 60.

The spelling of 438788690241 in words is "four hundred thirty-eight billion, seven hundred eighty-eight million, six hundred ninety thousand, two hundred forty-one".