43838442 has 32 divisors (see below), whose sum is σ = 98602560. Its totient is φ = 14435280.

The previous prime is 43838441. The next prime is 43838447. The reversal of 43838442 is 24483834.

It is a junction number, because it is equal to n+sod(n) for n = 43838397 and 43838406.

It is not an unprimeable number, because it can be changed into a prime (43838441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 409 + ... + 9372.

It is an arithmetic number, because the mean of its divisors is an integer number (3081330).

Almost surely, 2^43838442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43838442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49301280).

43838442 is an abundant number, since it is smaller than the sum of its proper divisors (54764118).

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

43838442 is a wasteful number, since it uses less digits than its factorization.

43838442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9875 (or 9869 counting only the distinct ones).

The product of its digits is 73728, while the sum is 36.

The square root of 43838442 is about 6621.0604890757. The cubic root of 43838442 is about 352.6022157172.

The spelling of 43838442 in words is "forty-three million, eight hundred thirty-eight thousand, four hundred forty-two".