43213542 has 16 divisors (see below), whose sum is σ = 86663280. Its totient is φ = 14365152.

The previous prime is 43213537. The next prime is 43213579. The reversal of 43213542 is 24531234.

43213542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7417 + ... + 11892.

It is an arithmetic number, because the mean of its divisors is an integer number (5416455).

Almost surely, 2^43213542 is an apocalyptic number.

43213542 is an abundant number, since it is smaller than the sum of its proper divisors (43449738).

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

43213542 is a wasteful number, since it uses less digits than its factorization.

43213542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19687.

The product of its digits is 2880, while the sum is 24.

The square root of 43213542 is about 6573.7007841854. The cubic root of 43213542 is about 350.9187886887.

Adding to 43213542 its reverse (24531234), we get a palindrome (67744776).

The spelling of 43213542 in words is "forty-three million, two hundred thirteen thousand, five hundred forty-two".