43056542 has 4 divisors (see below), whose sum is σ = 64584816. Its totient is φ = 21528270.

The previous prime is 43056539. The next prime is 43056547. The reversal of 43056542 is 24565034.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43056547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10764134 + ... + 10764137.

It is an arithmetic number, because the mean of its divisors is an integer number (16146204).

Almost surely, 2^43056542 is an apocalyptic number.

43056542 is a deficient number, since it is larger than the sum of its proper divisors (21528274).

43056542 is a wasteful number, since it uses less digits than its factorization.

43056542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21528273.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 43056542 is about 6561.7483950545. The cubic root of 43056542 is about 350.4932962496.

The spelling of 43056542 in words is "forty-three million, fifty-six thousand, five hundred forty-two".