43538222 has 64 divisors (see below), whose sum is σ = 85034880. Its totient is φ = 16257024.

The previous prime is 43538221. The next prime is 43538237. The reversal of 43538222 is 22283534.

43538222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×43538222³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43538221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 385238 + ... + 385350.

It is an arithmetic number, because the mean of its divisors is an integer number (1328670).

Almost surely, 2^43538222 is an apocalyptic number.

43538222 is a deficient number, since it is larger than the sum of its proper divisors (41496658).

43538222 is a wasteful number, since it uses less digits than its factorization.

43538222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237.

The product of its digits is 11520, while the sum is 29.

The square root of 43538222 is about 6598.3499452515. The cubic root of 43538222 is about 351.7954594656.

The spelling of 43538222 in words is "forty-three million, five hundred thirty-eight thousand, two hundred twenty-two".