74066780 has 24 divisors (see below), whose sum is σ = 155813280. Its totient is φ = 29574720.

The previous prime is 74066777. The next prime is 74066789. The reversal of 74066780 is 8766047.

It is a super-3 number, since 3×74066780³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74066789) 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 7 ways as a sum of consecutive naturals, for example, 9686 + ... + 15554.

It is an arithmetic number, because the mean of its divisors is an integer number (6492220).

Almost surely, 2^74066780 is an apocalyptic number.

It is an amenable number.

74066780 is an abundant number, since it is smaller than the sum of its proper divisors (81746500).

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

74066780 is a wasteful number, since it uses less digits than its factorization.

74066780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6509 (or 6507 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 74066780 is about 8606.2059003954. The cubic root of 74066780 is about 419.9598979096.

The spelling of 74066780 in words is "seventy-four million, sixty-six thousand, seven hundred eighty".