73640074 has 8 divisors (see below), whose sum is σ = 110557188. Its totient is φ = 36787680.

The previous prime is 73640071. The next prime is 73640093. The reversal of 73640074 is 47004637.

It can be written as a sum of positive squares in 2 ways, for example, as 63123025 + 10517049 = 7945^2 + 3243^2 .

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

It is not an unprimeable number, because it can be changed into a prime (73640071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13227 + ... + 17950.

Almost surely, 2^73640074 is an apocalyptic number.

73640074 is a deficient number, since it is larger than the sum of its proper divisors (36917114).

73640074 is a wasteful number, since it uses less digits than its factorization.

73640074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32360.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 73640074 is about 8581.3794928321. The cubic root of 73640074 is about 419.1518674523.

The spelling of 73640074 in words is "seventy-three million, six hundred forty thousand, seventy-four".