43768920 has 64 divisors (see below), whose sum is σ = 141412320. Its totient is φ = 10773504.

The previous prime is 43768909. The next prime is 43768943. The reversal of 43768920 is 2986734.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12469 + ... + 15588.

Almost surely, 2^43768920 is an apocalyptic number.

43768920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43768920 is an abundant number, since it is smaller than the sum of its proper divisors (97643400).

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

43768920 is a wasteful number, since it uses less digits than its factorization.

43768920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28084 (or 28080 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 43768920 is about 6615.8083406338. The cubic root of 43768920 is about 352.4157235275.

The spelling of 43768920 in words is "forty-three million, seven hundred sixty-eight thousand, nine hundred twenty".