73442071 has 4 divisors (see below), whose sum is σ = 73749600. Its totient is φ = 73134544.

The previous prime is 73442063. The next prime is 73442081. The reversal of 73442071 is 17024437.

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 73442071 - 2³ = 73442063 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 (73442041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153406 + ... + 153883.

It is an arithmetic number, because the mean of its divisors is an integer number (18437400).

Almost surely, 2^73442071 is an apocalyptic number.

73442071 is a deficient number, since it is larger than the sum of its proper divisors (307529).

73442071 is a wasteful number, since it uses less digits than its factorization.

73442071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307528.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 73442071 is about 8569.8349459018. The cubic root of 73442071 is about 418.7758592184.

The spelling of 73442071 in words is "seventy-three million, four hundred forty-two thousand, seventy-one".