442069543 has 4 divisors (see below), whose sum is σ = 447665440. Its totient is φ = 436473648.

The previous prime is 442069519. The next prime is 442069549. The reversal of 442069543 is 345960244.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 442069543 - 2²⁵ = 408515111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442069549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2797830 + ... + 2797987.

It is an arithmetic number, because the mean of its divisors is an integer number (111916360).

Almost surely, 2^442069543 is an apocalyptic number.

442069543 is a deficient number, since it is larger than the sum of its proper divisors (5595897).

442069543 is an equidigital number, since it uses as much as digits as its factorization.

442069543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5595896.

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 442069543 is about 21025.4498881712. The cubic root of 442069543 is about 761.7811082637.

The spelling of 442069543 in words is "four hundred forty-two million, sixty-nine thousand, five hundred forty-three".