74345438 has 8 divisors (see below), whose sum is σ = 112771440. Its totient is φ = 36754960.

The previous prime is 74345417. The next prime is 74345459. The reversal of 74345438 is 83454347.

It is an interprime number because it is at equal distance from previous prime (74345417) and next prime (74345459).

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

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 208658 + ... + 209013.

It is an arithmetic number, because the mean of its divisors is an integer number (14096430).

Almost surely, 2^74345438 is an apocalyptic number.

74345438 is a deficient number, since it is larger than the sum of its proper divisors (38426002).

74345438 is a wasteful number, since it uses less digits than its factorization.

74345438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417762.

The product of its digits is 161280, while the sum is 38.

The square root of 74345438 is about 8622.3800658519. The cubic root of 74345438 is about 420.4859039983.

The spelling of 74345438 in words is "seventy-four million, three hundred forty-five thousand, four hundred thirty-eight".