74449600 has 168 divisors, whose sum is σ = 201574400. Its totient is φ = 26956800.

The previous prime is 74449591. The next prime is 74449601. The reversal of 74449600 is 694447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74449601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 942361 + ... + 942439.

Almost surely, 2^74449600 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74449600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100787200).

74449600 is an abundant number, since it is smaller than the sum of its proper divisors (127124800).

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

74449600 is a wasteful number, since it uses less digits than its factorization.

74449600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 74449600 is about 8628.4181632556. The cubic root of 74449600 is about 420.6821868954.

The spelling of 74449600 in words is "seventy-four million, four hundred forty-nine thousand, six hundred".