74616445 has 8 divisors (see below), whose sum is σ = 89601336. Its totient is φ = 59652096.

The previous prime is 74616431. The next prime is 74616461. The reversal of 74616445 is 54461647.

It can be written as a sum of positive squares in 4 ways, for example, as 7851204 + 66765241 = 2802^2 + 8171^2 .

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 74616445 - 2⁷ = 74616317 is a prime.

It is a super-2 number, since 2×74616445² = 11135227728876050, which contains 22 as substring.

It is a Duffinian number.

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, 4509 + ... + 13021.

It is an arithmetic number, because the mean of its divisors is an integer number (11200167).

Almost surely, 2^74616445 is an apocalyptic number.

It is an amenable number.

74616445 is a deficient number, since it is larger than the sum of its proper divisors (14984891).

74616445 is a wasteful number, since it uses less digits than its factorization.

74616445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10271.

The product of its digits is 80640, while the sum is 37.

The square root of 74616445 is about 8638.0810947803. The cubic root of 74616445 is about 420.9962085181.

The spelling of 74616445 in words is "seventy-four million, six hundred sixteen thousand, four hundred forty-five".