74140424 has 16 divisors (see below), whose sum is σ = 139901100. Its totient is φ = 36833472.

The previous prime is 74140421. The next prime is 74140433. The reversal of 74140424 is 42404147.

It can be written as a sum of positive squares in 2 ways, for example, as 67535524 + 6604900 = 8218^2 + 2570^2 .

It is a junction number, because it is equal to n+sod(n) for n = 74140393 and 74140402.

It is not an unprimeable number, because it can be changed into a prime (74140421) 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, 28259 + ... + 30770.

Almost surely, 2^74140424 is an apocalyptic number.

It is an amenable number.

74140424 is a deficient number, since it is larger than the sum of its proper divisors (65760676).

74140424 is a wasteful number, since it uses less digits than its factorization.

74140424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59192 (or 59188 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 26.

The square root of 74140424 is about 8610.4833778366. The cubic root of 74140424 is about 420.0990393801.

The spelling of 74140424 in words is "seventy-four million, one hundred forty thousand, four hundred twenty-four".