43394452 has 12 divisors (see below), whose sum is σ = 76186656. Its totient is φ = 21626840.

The previous prime is 43394437. The next prime is 43394453. The reversal of 43394452 is 25449334.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43394453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16198 + ... + 18685.

It is an arithmetic number, because the mean of its divisors is an integer number (6348888).

Almost surely, 2^43394452 is an apocalyptic number.

It is an amenable number.

43394452 is a deficient number, since it is larger than the sum of its proper divisors (32792204).

43394452 is a wasteful number, since it uses less digits than its factorization.

43394452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35198 (or 35196 counting only the distinct ones).

The product of its digits is 51840, while the sum is 34.

The square root of 43394452 is about 6587.4465462727. The cubic root of 43394452 is about 351.4078046266.

The spelling of 43394452 in words is "forty-three million, three hundred ninety-four thousand, four hundred fifty-two".