74741638 has 8 divisors (see below), whose sum is σ = 112262832. Its totient is φ = 37320696.

The previous prime is 74741633. The next prime is 74741683. The reversal of 74741638 is 83614747.

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 self number, because there is not a number n which added to its sum of digits gives 74741638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74741633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23170 + ... + 26197.

It is an arithmetic number, because the mean of its divisors is an integer number (14032854).

Almost surely, 2^74741638 is an apocalyptic number.

74741638 is a deficient number, since it is larger than the sum of its proper divisors (37521194).

74741638 is a wasteful number, since it uses less digits than its factorization.

74741638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50126.

The product of its digits is 112896, while the sum is 40.

The square root of 74741638 is about 8645.3246324242. The cubic root of 74741638 is about 421.2315289796.

The spelling of 74741638 in words is "seventy-four million, seven hundred forty-one thousand, six hundred thirty-eight".