438475000 has 48 divisors (see below), whose sum is σ = 1027668600. Its totient is φ = 175380000.

The previous prime is 438474997. The next prime is 438475003. The reversal of 438475000 is 574834.

It is an interprime number because it is at equal distance from previous prime (438474997) and next prime (438475003).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438475003) 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 11 ways as a sum of consecutive naturals, for example, 16231 + ... + 33769.

Almost surely, 2^438475000 is an apocalyptic number.

438475000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 438475000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (513834300).

438475000 is an abundant number, since it is smaller than the sum of its proper divisors (589193600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

438475000 is an equidigital number, since it uses as much as digits as its factorization.

438475000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17570 (or 17546 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 438475000 is about 20939.7946503780. The cubic root of 438475000 is about 759.7107625134.

The spelling of 438475000 in words is "four hundred thirty-eight million, four hundred seventy-five thousand".