74418340 has 24 divisors (see below), whose sum is σ = 163074240. Its totient is φ = 28472928.

The previous prime is 74418319. The next prime is 74418341. The reversal of 74418340 is 4381447.

It is not an unprimeable number, because it can be changed into a prime (74418341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80430 + ... + 81349.

It is an arithmetic number, because the mean of its divisors is an integer number (6794760).

Almost surely, 2^74418340 is an apocalyptic number.

It is an amenable number.

74418340 is an abundant number, since it is smaller than the sum of its proper divisors (88655900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74418340 is a wasteful number, since it uses less digits than its factorization.

74418340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161811 (or 161809 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 74418340 is about 8626.6065170494. The cubic root of 74418340 is about 420.6232997818.

Adding to 74418340 its reverse (4381447), we get a palindrome (78799787).

The spelling of 74418340 in words is "seventy-four million, four hundred eighteen thousand, three hundred forty".