43648938 has 48 divisors (see below), whose sum is σ = 96741216. Its totient is φ = 14220960.

The previous prime is 43648931. The next prime is 43648939. The reversal of 43648938 is 83984634.

It is a junction number, because it is equal to n+sod(n) for n = 43648893 and 43648902.

It is not an unprimeable number, because it can be changed into a prime (43648931) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 252220 + ... + 252392.

It is an arithmetic number, because the mean of its divisors is an integer number (2015442).

Almost surely, 2^43648938 is an apocalyptic number.

43648938 is an abundant number, since it is smaller than the sum of its proper divisors (53092278).

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

43648938 is a wasteful number, since it uses less digits than its factorization.

43648938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419 (or 416 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 43648938 is about 6606.7342916149. The cubic root of 43648938 is about 352.0934077608.

The spelling of 43648938 in words is "forty-three million, six hundred forty-eight thousand, nine hundred thirty-eight".