74426784 has 96 divisors (see below), whose sum is σ = 204664320. Its totient is φ = 23654400.

The previous prime is 74426773. The next prime is 74426813. The reversal of 74426784 is 48762447.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

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, 264724 + ... + 265004.

It is an arithmetic number, because the mean of its divisors is an integer number (2131920).

Almost surely, 2^74426784 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 74426784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102332160).

74426784 is an abundant number, since it is smaller than the sum of its proper divisors (130237536).

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

74426784 is a wasteful number, since it uses less digits than its factorization.

74426784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414 (or 406 counting only the distinct ones).

The product of its digits is 301056, while the sum is 42.

The square root of 74426784 is about 8627.0959192535. The cubic root of 74426784 is about 420.6392080862.

It can be divided in two parts, 744 and 26784, that multiplied together give a square (19927296 = 4464²).

The spelling of 74426784 in words is "seventy-four million, four hundred twenty-six thousand, seven hundred eighty-four".