43542542 has 16 divisors (see below), whose sum is σ = 72163872. Its totient is φ = 19599360.

The previous prime is 43542523. The next prime is 43542581. The reversal of 43542542 is 24524534.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27059 + ... + 28622.

It is an arithmetic number, because the mean of its divisors is an integer number (4510242).

Almost surely, 2^43542542 is an apocalyptic number.

43542542 is a deficient number, since it is larger than the sum of its proper divisors (28621330).

43542542 is a wasteful number, since it uses less digits than its factorization.

43542542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55723.

The product of its digits is 19200, while the sum is 29.

The square root of 43542542 is about 6598.6772917002. The cubic root of 43542542 is about 351.8070944999.

The spelling of 43542542 in words is "forty-three million, five hundred forty-two thousand, five hundred forty-two".