43538738 has 8 divisors (see below), whose sum is σ = 65363760. Its totient is φ = 21750820.

The previous prime is 43538723. The next prime is 43538749. The reversal of 43538738 is 83783534.

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

It is a junction number, because it is equal to n+sod(n) for n = 43538695 and 43538704.

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 3 ways as a sum of consecutive naturals, for example, 6128 + ... + 11163.

It is an arithmetic number, because the mean of its divisors is an integer number (8170470).

Almost surely, 2^43538738 is an apocalyptic number.

43538738 is a deficient number, since it is larger than the sum of its proper divisors (21825022).

43538738 is a wasteful number, since it uses less digits than its factorization.

43538738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18552.

The product of its digits is 241920, while the sum is 41.

The square root of 43538738 is about 6598.3890458202. The cubic root of 43538738 is about 351.7968492463.

The spelling of 43538738 in words is "forty-three million, five hundred thirty-eight thousand, seven hundred thirty-eight".