438979760 has 20 divisors (see below), whose sum is σ = 1020628128. Its totient is φ = 175591872.

The previous prime is 438979753. The next prime is 438979769. The reversal of 438979760 is 67979834.

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

It is not an unprimeable number, because it can be changed into a prime (438979769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2743544 + ... + 2743703.

Almost surely, 2^438979760 is an apocalyptic number.

438979760 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

438979760 is an abundant number, since it is smaller than the sum of its proper divisors (581648368).

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

438979760 is a wasteful number, since it uses less digits than its factorization.

438979760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5487260 (or 5487254 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 53.

The square root of 438979760 is about 20951.8438329422. The cubic root of 438979760 is about 760.0021698922.

The spelling of 438979760 in words is "four hundred thirty-eight million, nine hundred seventy-nine thousand, seven hundred sixty".