74426573 has 8 divisors (see below), whose sum is σ = 82318488. Its totient is φ = 66844224.

The previous prime is 74426537. The next prime is 74426581. The reversal of 74426573 is 37562447.

It can be written as a sum of positive squares in 4 ways, for example, as 10778089 + 63648484 = 3283^2 + 7978^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74426573 - 2¹² = 74422477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74426773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76886 + ... + 77847.

It is an arithmetic number, because the mean of its divisors is an integer number (10289811).

Almost surely, 2^74426573 is an apocalyptic number.

It is an amenable number.

74426573 is a deficient number, since it is larger than the sum of its proper divisors (7891915).

74426573 is a wasteful number, since it uses less digits than its factorization.

74426573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154783.

The product of its digits is 141120, while the sum is 38.

The square root of 74426573 is about 8627.0836903324. The cubic root of 74426573 is about 420.6388105817.

The spelling of 74426573 in words is "seventy-four million, four hundred twenty-six thousand, five hundred seventy-three".