74720434 has 8 divisors (see below), whose sum is σ = 112337280. Its totient is φ = 37274676.

The previous prime is 74720419. The next prime is 74720449. The reversal of 74720434 is 43402747.

It is an interprime number because it is at equal distance from previous prime (74720419) and next prime (74720449).

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

It is a junction number, because it is equal to n+sod(n) for n = 74720396 and 74720405.

It is an unprimeable number.

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, 41674 + ... + 43429.

It is an arithmetic number, because the mean of its divisors is an integer number (14042160).

Almost surely, 2^74720434 is an apocalyptic number.

74720434 is a deficient number, since it is larger than the sum of its proper divisors (37616846).

74720434 is a wasteful number, since it uses less digits than its factorization.

74720434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85544.

The product of its (nonzero) digits is 18816, while the sum is 31.

The square root of 74720434 is about 8644.0982178594. The cubic root of 74720434 is about 421.1916911313.

The spelling of 74720434 in words is "seventy-four million, seven hundred twenty thousand, four hundred thirty-four".