43538242 has 16 divisors (see below), whose sum is σ = 71360352. Its totient is φ = 19757920.

The previous prime is 43538239. The next prime is 43538273. The reversal of 43538242 is 24283534.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 16998 + ... + 19390.

It is an arithmetic number, because the mean of its divisors is an integer number (4460022).

Almost surely, 2^43538242 is an apocalyptic number.

43538242 is a deficient number, since it is larger than the sum of its proper divisors (27822110).

43538242 is a wasteful number, since it uses less digits than its factorization.

43538242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3233.

The product of its digits is 23040, while the sum is 31.

The square root of 43538242 is about 6598.3514607817. The cubic root of 43538242 is about 351.7955133332.

The spelling of 43538242 in words is "forty-three million, five hundred thirty-eight thousand, two hundred forty-two".