74144473 has 16 divisors (see below), whose sum is σ = 81357696. Its totient is φ = 67161600.

The previous prime is 74144471. The next prime is 74144489. The reversal of 74144473 is 37444147.

It is a cyclic number.

It is not a de Polignac number, because 74144473 - 2¹ = 74144471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74144471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209865 + ... + 210217.

It is an arithmetic number, because the mean of its divisors is an integer number (5084856).

Almost surely, 2^74144473 is an apocalyptic number.

It is an amenable number.

74144473 is a deficient number, since it is larger than the sum of its proper divisors (7213223).

74144473 is a wasteful number, since it uses less digits than its factorization.

74144473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624.

The product of its digits is 37632, while the sum is 34.

The square root of 74144473 is about 8610.7184949922. The cubic root of 74144473 is about 420.1066868053.

The spelling of 74144473 in words is "seventy-four million, one hundred forty-four thousand, four hundred seventy-three".