74943938 has 8 divisors (see below), whose sum is σ = 112834620. Its totient is φ = 37332400.

The previous prime is 74943901. The next prime is 74943949. The reversal of 74943938 is 83934947.

It can be written as a sum of positive squares in 2 ways, for example, as 74943649 + 289 = 8657^2 + 17^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 74943892 and 74943901.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69113 + ... + 70188.

Almost surely, 2^74943938 is an apocalyptic number.

74943938 is a deficient number, since it is larger than the sum of its proper divisors (37890682).

74943938 is a wasteful number, since it uses less digits than its factorization.

74943938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139572.

The product of its digits is 653184, while the sum is 47.

The square root of 74943938 is about 8657.0166916785. The cubic root of 74943938 is about 421.6112297429.

The spelling of 74943938 in words is "seventy-four million, nine hundred forty-three thousand, nine hundred thirty-eight".