74306340 has 72 divisors (see below), whose sum is σ = 237269760. Its totient is φ = 18771264.

The previous prime is 74306333. The next prime is 74306341. The reversal of 74306340 is 4360347.

It is not an unprimeable number, because it can be changed into a prime (74306341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7444 + ... + 14283.

Almost surely, 2^74306340 is an apocalyptic number.

It is an amenable number.

74306340 is an abundant number, since it is smaller than the sum of its proper divisors (162963420).

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

74306340 is a wasteful number, since it uses less digits than its factorization.

74306340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21761 (or 21756 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 74306340 is about 8620.1125282678. The cubic root of 74306340 is about 420.4121803953.

Adding to 74306340 its reverse (4360347), we get a palindrome (78666687).

The spelling of 74306340 in words is "seventy-four million, three hundred six thousand, three hundred forty".