74173445 has 8 divisors (see below), whose sum is σ = 92077560. Its totient is φ = 57292480.

The previous prime is 74173439. The next prime is 74173501. The reversal of 74173445 is 54437147.

It can be written as a sum of positive squares in 4 ways, for example, as 58564 + 74114881 = 242^2 + 8609^2 .

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

It is not a de Polignac number, because 74173445 - 2⁶ = 74173381 is a prime.

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, 255626 + ... + 255915.

It is an arithmetic number, because the mean of its divisors is an integer number (11509695).

Almost surely, 2^74173445 is an apocalyptic number.

It is an amenable number.

74173445 is a deficient number, since it is larger than the sum of its proper divisors (17904115).

74173445 is a wasteful number, since it uses less digits than its factorization.

74173445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511575.

The product of its digits is 47040, while the sum is 35.

The square root of 74173445 is about 8612.4006525475. The cubic root of 74173445 is about 420.1613986648.

The spelling of 74173445 in words is "seventy-four million, one hundred seventy-three thousand, four hundred forty-five".