43742244 has 96 divisors (see below), whose sum is σ = 128814336. Its totient is φ = 11243520.

The previous prime is 43742243. The next prime is 43742249. The reversal of 43742244 is 44224734.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (43742243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44284 + ... + 45260.

It is an arithmetic number, because the mean of its divisors is an integer number (1341816).

Almost surely, 2^43742244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43742244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64407168).

43742244 is an abundant number, since it is smaller than the sum of its proper divisors (85072092).

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

43742244 is a wasteful number, since it uses less digits than its factorization.

43742244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045 (or 1043 counting only the distinct ones).

The product of its digits is 21504, while the sum is 30.

The square root of 43742244 is about 6613.7919531839. The cubic root of 43742244 is about 352.3441129540.

Adding to 43742244 its reverse (44224734), we get a palindrome (87966978).

The spelling of 43742244 in words is "forty-three million, seven hundred forty-two thousand, two hundred forty-four".