438928454 has 8 divisors (see below), whose sum is σ = 658492320. Its totient is φ = 219431016.

The previous prime is 438928397. The next prime is 438928459. The reversal of 438928454 is 454829834.

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

It is a junction number, because it is equal to n+sod(n) for n = 438928399 and 438928408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438928459) 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 3 ways as a sum of consecutive naturals, for example, 6152 + ... + 30260.

It is an arithmetic number, because the mean of its divisors is an integer number (82311540).

Almost surely, 2^438928454 is an apocalyptic number.

438928454 is a deficient number, since it is larger than the sum of its proper divisors (219563866).

438928454 is a wasteful number, since it uses less digits than its factorization.

438928454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33214.

The product of its digits is 1105920, while the sum is 47.

The square root of 438928454 is about 20950.6194180506. The cubic root of 438928454 is about 759.9725601820.

The spelling of 438928454 in words is "four hundred thirty-eight million, nine hundred twenty-eight thousand, four hundred fifty-four".