43974252 has 144 divisors (see below), whose sum is σ = 137958912. Its totient is φ = 11975040.

The previous prime is 43974247. The next prime is 43974253. The reversal of 43974252 is 25247934.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (43974253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 156352 + ... + 156632.

It is an arithmetic number, because the mean of its divisors is an integer number (958048).

Almost surely, 2^43974252 is an apocalyptic number.

43974252 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43974252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68979456).

43974252 is an abundant number, since it is smaller than the sum of its proper divisors (93984660).

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

43974252 is a wasteful number, since it uses less digits than its factorization.

43974252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330 (or 316 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 43974252 is about 6631.3084681683. The cubic root of 43974252 is about 352.9659569072.

It can be divided in two parts, 4397 and 4252, that added together give a square (8649 = 93²).

The spelling of 43974252 in words is "forty-three million, nine hundred seventy-four thousand, two hundred fifty-two".