74185481 has 8 divisors (see below), whose sum is σ = 80201280. Its totient is φ = 68380848.

The previous prime is 74185471. The next prime is 74185487. The reversal of 74185481 is 18458147.

It is a happy number.

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

It is not a de Polignac number, because 74185481 - 2⁶ = 74185417 is a prime.

It is a super-2 number, since 2×74185481² = 11006971182402722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74185487) 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, 52061 + ... + 53466.

It is an arithmetic number, because the mean of its divisors is an integer number (10025160).

Almost surely, 2^74185481 is an apocalyptic number.

It is an amenable number.

74185481 is a deficient number, since it is larger than the sum of its proper divisors (6015799).

74185481 is a wasteful number, since it uses less digits than its factorization.

74185481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105583.

The product of its digits is 35840, while the sum is 38.

The square root of 74185481 is about 8613.0993840777. The cubic root of 74185481 is about 420.1841237298.

The spelling of 74185481 in words is "seventy-four million, one hundred eighty-five thousand, four hundred eighty-one".