438961000 has 32 divisors (see below), whose sum is σ = 1027171080. Its totient is φ = 175584000.

The previous prime is 438960997. The next prime is 438961013. The reversal of 438961000 is 169834.

It can be written as a sum of positive squares in 4 ways, for example, as 111133764 + 327827236 = 10542^2 + 18106^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 218481 + ... + 220480.

Almost surely, 2^438961000 is an apocalyptic number.

438961000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

438961000 is an abundant number, since it is smaller than the sum of its proper divisors (588210080).

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

438961000 is a wasteful number, since it uses less digits than its factorization.

438961000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438982 (or 438968 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 438961000 is about 20951.3961348641. The cubic root of 438961000 is about 759.9913433917.

The spelling of 438961000 in words is "four hundred thirty-eight million, nine hundred sixty-one thousand".