438900506 has 8 divisors (see below), whose sum is σ = 718200864. Its totient is φ = 199500220.

The previous prime is 438900503. The next prime is 438900533. The reversal of 438900506 is 605009834.

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

It is not an unprimeable number, because it can be changed into a prime (438900503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9974990 + ... + 9975033.

It is an arithmetic number, because the mean of its divisors is an integer number (89775108).

Almost surely, 2^438900506 is an apocalyptic number.

438900506 is a deficient number, since it is larger than the sum of its proper divisors (279300358).

438900506 is a wasteful number, since it uses less digits than its factorization.

438900506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19950036.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 438900506 is about 20949.9524104471. The cubic root of 438900506 is about 759.9564298660.

The spelling of 438900506 in words is "four hundred thirty-eight million, nine hundred thousand, five hundred six".