74340224 has 64 divisors (see below), whose sum is σ = 175154400. Its totient is φ = 30750720.

The previous prime is 74340223. The next prime is 74340241. The reversal of 74340224 is 42204347.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 74340193 and 74340202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74340223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24554 + ... + 27414.

Almost surely, 2^74340224 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 74340224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87577200).

74340224 is an abundant number, since it is smaller than the sum of its proper divisors (100814176).

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

74340224 is a wasteful number, since it uses less digits than its factorization.

74340224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2911 (or 2899 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 26.

The square root of 74340224 is about 8622.0777078382. The cubic root of 74340224 is about 420.4760739185.

The spelling of 74340224 in words is "seventy-four million, three hundred forty thousand, two hundred twenty-four".