74471424 has 192 divisors, whose sum is σ = 226437120. Its totient is φ = 21626880.

The previous prime is 74471387. The next prime is 74471429. The reversal of 74471424 is 42417447.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74471429) 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 15 ways as a sum of consecutive naturals, for example, 2402289 + ... + 2402319.

It is an arithmetic number, because the mean of its divisors is an integer number (1179360).

Almost surely, 2^74471424 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 74471424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113218560).

74471424 is an abundant number, since it is smaller than the sum of its proper divisors (151965696).

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

74471424 is a wasteful number, since it uses less digits than its factorization.

74471424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96 (or 76 counting only the distinct ones).

The product of its digits is 25088, while the sum is 33.

The square root of 74471424 is about 8629.6827288145. The cubic root of 74471424 is about 420.7232888449.

The spelling of 74471424 in words is "seventy-four million, four hundred seventy-one thousand, four hundred twenty-four".