74020812 has 12 divisors (see below), whose sum is σ = 172715256. Its totient is φ = 24673600.

The previous prime is 74020787. The next prime is 74020819. The reversal of 74020812 is 21802047.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (74020819) 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, 3084189 + ... + 3084212.

It is an arithmetic number, because the mean of its divisors is an integer number (14392938).

Almost surely, 2^74020812 is an apocalyptic number.

It is an amenable number.

74020812 is an abundant number, since it is smaller than the sum of its proper divisors (98694444).

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

74020812 is a wasteful number, since it uses less digits than its factorization.

74020812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6168408 (or 6168406 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 74020812 is about 8603.5348549303. The cubic root of 74020812 is about 419.8730001503.

Adding to 74020812 its reverse (21802047), we get a palindrome (95822859).

The spelling of 74020812 in words is "seventy-four million, twenty thousand, eight hundred twelve".