43747242 has 96 divisors (see below), whose sum is σ = 114670080. Its totient is φ = 10808160.

The previous prime is 43747237. The next prime is 43747243. The reversal of 43747242 is 24274734.

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

It is not an unprimeable number, because it can be changed into a prime (43747243) 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, 244309 + ... + 244487.

It is an arithmetic number, because the mean of its divisors is an integer number (1194480).

Almost surely, 2^43747242 is an apocalyptic number.

43747242 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 43747242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57335040).

43747242 is an abundant number, since it is smaller than the sum of its proper divisors (70922838).

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

43747242 is a wasteful number, since it uses less digits than its factorization.

43747242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 225 counting only the distinct ones).

The product of its digits is 37632, while the sum is 33.

The square root of 43747242 is about 6614.1697891723. The cubic root of 43747242 is about 352.3575320858.

The spelling of 43747242 in words is "forty-three million, seven hundred forty-seven thousand, two hundred forty-two".