74065641 has 8 divisors (see below), whose sum is σ = 106350720. Its totient is φ = 45578832.

The previous prime is 74065633. The next prime is 74065657. The reversal of 74065641 is 14656047.

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

It is not a de Polignac number, because 74065641 - 2³ = 74065633 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (74065661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 949521 + ... + 949598.

It is an arithmetic number, because the mean of its divisors is an integer number (13293840).

Almost surely, 2^74065641 is an apocalyptic number.

It is an amenable number.

74065641 is a deficient number, since it is larger than the sum of its proper divisors (32285079).

74065641 is a wasteful number, since it uses less digits than its factorization.

74065641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1899135.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 74065641 is about 8606.1397269624. The cubic root of 74065641 is about 419.9577451821.

The spelling of 74065641 in words is "seventy-four million, sixty-five thousand, six hundred forty-one".