438760240 has 20 divisors (see below), whose sum is σ = 1020117744. Its totient is φ = 175504064.

The previous prime is 438760237. The next prime is 438760253. The reversal of 438760240 is 42067834.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 438760196 and 438760205.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2742172 + ... + 2742331.

Almost surely, 2^438760240 is an apocalyptic number.

438760240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

438760240 is an abundant number, since it is smaller than the sum of its proper divisors (581357504).

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

438760240 is a wasteful number, since it uses less digits than its factorization.

438760240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5484516 (or 5484510 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 438760240 is about 20946.6044981042. The cubic root of 438760240 is about 759.8754643589.

The spelling of 438760240 in words is "four hundred thirty-eight million, seven hundred sixty thousand, two hundred forty".