74644429 has 8 divisors (see below), whose sum is σ = 76878560. Its totient is φ = 72421776.

The previous prime is 74644421. The next prime is 74644439. The reversal of 74644429 is 92444647.

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

It is a cyclic number.

It is not a de Polignac number, because 74644429 - 2³ = 74644421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74644391 and 74644400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74644421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11362 + ... + 16684.

It is an arithmetic number, because the mean of its divisors is an integer number (9609820).

Almost surely, 2^74644429 is an apocalyptic number.

It is an amenable number.

74644429 is a deficient number, since it is larger than the sum of its proper divisors (2234131).

74644429 is a wasteful number, since it uses less digits than its factorization.

74644429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5739.

The product of its digits is 193536, while the sum is 40.

The square root of 74644429 is about 8639.7007471324. The cubic root of 74644429 is about 421.0488317944.

The spelling of 74644429 in words is "seventy-four million, six hundred forty-four thousand, four hundred twenty-nine".