74781338 has 4 divisors (see below), whose sum is σ = 112172010. Its totient is φ = 37390668.

The previous prime is 74781323. The next prime is 74781341. The reversal of 74781338 is 83318747.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 70442449 + 4338889 = 8393^2 + 2083^2 .

It is a junction number, because it is equal to n+sod(n) for n = 74781295 and 74781304.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18695333 + ... + 18695336.

Almost surely, 2^74781338 is an apocalyptic number.

74781338 is a deficient number, since it is larger than the sum of its proper divisors (37390672).

74781338 is a wasteful number, since it uses less digits than its factorization.

74781338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37390671.

The product of its digits is 112896, while the sum is 41.

The square root of 74781338 is about 8647.6203663204. The cubic root of 74781338 is about 421.3060966600.

The spelling of 74781338 in words is "seventy-four million, seven hundred eighty-one thousand, three hundred thirty-eight".