43242738 has 96 divisors (see below), whose sum is σ = 111132672. Its totient is φ = 10977120.

The previous prime is 43242709. The next prime is 43242739. The reversal of 43242738 is 83724234.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 43242699 and 43242708.

It is not an unprimeable number, because it can be changed into a prime (43242739) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 340431 + ... + 340557.

It is an arithmetic number, because the mean of its divisors is an integer number (1157632).

Almost surely, 2^43242738 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43242738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55566336).

43242738 is an abundant number, since it is smaller than the sum of its proper divisors (67889934).

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

43242738 is a wasteful number, since it uses less digits than its factorization.

43242738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 217 counting only the distinct ones).

The product of its digits is 32256, while the sum is 33.

The square root of 43242738 is about 6575.9210761687. The cubic root of 43242738 is about 350.9978003287.

The spelling of 43242738 in words is "forty-three million, two hundred forty-two thousand, seven hundred thirty-eight".