74016720 has 80 divisors (see below), whose sum is σ = 254953920. Its totient is φ = 19737216.

The previous prime is 74016697. The next prime is 74016721. The reversal of 74016720 is 2761047.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74016721) 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 15 ways as a sum of consecutive naturals, for example, 14974 + ... + 19293.

It is an arithmetic number, because the mean of its divisors is an integer number (3186924).

Almost surely, 2^74016720 is an apocalyptic number.

It is an amenable number.

74016720 is an abundant number, since it is smaller than the sum of its proper divisors (180937200).

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

74016720 is a wasteful number, since it uses less digits than its factorization.

74016720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34289 (or 34277 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 74016720 is about 8603.2970424134. The cubic root of 74016720 is about 419.8652629031.

Adding to 74016720 its reverse (2761047), we get a palindrome (76777767).

The spelling of 74016720 in words is "seventy-four million, sixteen thousand, seven hundred twenty".