74549616 has 80 divisors (see below), whose sum is σ = 207546240. Its totient is φ = 22982400.

The previous prime is 74549609. The next prime is 74549621. The reversal of 74549616 is 61694547.

It is a super-3 number, since 3×74549616³ (a number of 25 digits) contains 333 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38266 + ... + 40166.

It is an arithmetic number, because the mean of its divisors is an integer number (2594328).

Almost surely, 2^74549616 is an apocalyptic number.

74549616 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74549616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103773120).

74549616 is an abundant number, since it is smaller than the sum of its proper divisors (132996624).

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

74549616 is a wasteful number, since it uses less digits than its factorization.

74549616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1974 (or 1968 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The square root of 74549616 is about 8634.2119501435. The cubic root of 74549616 is about 420.8704848509.

The spelling of 74549616 in words is "seventy-four million, five hundred forty-nine thousand, six hundred sixteen".