74554436 has 24 divisors (see below), whose sum is σ = 142841664. Its totient is φ = 33766880.

The previous prime is 74554429. The next prime is 74554439. The reversal of 74554436 is 63445547.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 74554436.

It is not an unprimeable number, because it can be changed into a prime (74554439) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10001 + ... + 15783.

It is an arithmetic number, because the mean of its divisors is an integer number (5951736).

Almost surely, 2^74554436 is an apocalyptic number.

It is an amenable number.

74554436 is a deficient number, since it is larger than the sum of its proper divisors (68287228).

74554436 is a wasteful number, since it uses less digits than its factorization.

74554436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6091 (or 6089 counting only the distinct ones).

The product of its digits is 201600, while the sum is 38.

The square root of 74554436 is about 8634.4910678047. The cubic root of 74554436 is about 420.8795551056.

Subtracting from 74554436 its reverse (63445547), we obtain a square (11108889 = 3333²).

The spelling of 74554436 in words is "seventy-four million, five hundred fifty-four thousand, four hundred thirty-six".