74240086 has 4 divisors (see below), whose sum is σ = 111360132. Its totient is φ = 37120042.

The previous prime is 74240077. The next prime is 74240129. The reversal of 74240086 is 68004247.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68004247 = 53 ⋅1283099.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18560020 + ... + 18560023.

It is an arithmetic number, because the mean of its divisors is an integer number (27840033).

Almost surely, 2^74240086 is an apocalyptic number.

74240086 is a deficient number, since it is larger than the sum of its proper divisors (37120046).

74240086 is a wasteful number, since it uses less digits than its factorization.

74240086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37120045.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 74240086 is about 8616.2686819760. The cubic root of 74240086 is about 420.2871920869.

The spelling of 74240086 in words is "seventy-four million, two hundred forty thousand, eighty-six".