74384436 has 24 divisors (see below), whose sum is σ = 198358720. Its totient is φ = 21252672.

The previous prime is 74384423. The next prime is 74384447. The reversal of 74384436 is 63448347.

It is a junction number, because it is equal to n+sod(n) for n = 74384394 and 74384403.

It is a congruent number.

It is an unprimeable number.

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, 442681 + ... + 442848.

Almost surely, 2^74384436 is an apocalyptic number.

It is an amenable number.

74384436 is an abundant number, since it is smaller than the sum of its proper divisors (123974284).

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

74384436 is a wasteful number, since it uses less digits than its factorization.

74384436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885543 (or 885541 counting only the distinct ones).

The product of its digits is 193536, while the sum is 39.

The square root of 74384436 is about 8624.6412099287. The cubic root of 74384436 is about 420.5594132964.

The spelling of 74384436 in words is "seventy-four million, three hundred eighty-four thousand, four hundred thirty-six".