438629907 has 8 divisors (see below), whose sum is σ = 586907584. Its totient is φ = 291386088.

The previous prime is 438629887. The next prime is 438629911. The reversal of 438629907 is 709926834.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 438629907 - 2¹⁴ = 438613523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (438629957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257473 + ... + 259170.

It is an arithmetic number, because the mean of its divisors is an integer number (73363448).

Almost surely, 2^438629907 is an apocalyptic number.

438629907 is a deficient number, since it is larger than the sum of its proper divisors (148277677).

438629907 is a wasteful number, since it uses less digits than its factorization.

438629907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516929.

The product of its (nonzero) digits is 653184, while the sum is 48.

The square root of 438629907 is about 20943.4931900101. The cubic root of 438629907 is about 759.8002169932.

The spelling of 438629907 in words is "four hundred thirty-eight million, six hundred twenty-nine thousand, nine hundred seven".