43378746 has 8 divisors (see below), whose sum is σ = 86757504. Its totient is φ = 14459580.

The previous prime is 43378733. The next prime is 43378757. The reversal of 43378746 is 64787334.

43378746 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

43378746 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 43378698 and 43378707.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3614890 + ... + 3614901.

It is an arithmetic number, because the mean of its divisors is an integer number (10844688).

Almost surely, 2^43378746 is an apocalyptic number.

43378746 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

43378746 is a wasteful number, since it uses less digits than its factorization.

43378746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7229796.

The product of its digits is 338688, while the sum is 42.

The square root of 43378746 is about 6586.2543224507. The cubic root of 43378746 is about 351.3654038379.

The spelling of 43378746 in words is "forty-three million, three hundred seventy-eight thousand, seven hundred forty-six".