74544536 has 16 divisors (see below), whose sum is σ = 152477640. Its totient is φ = 33883840.

The previous prime is 74544497. The next prime is 74544539. The reversal of 74544536 is 63544547.

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 74544536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74544539) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 423461 + ... + 423636.

Almost surely, 2^74544536 is an apocalyptic number.

It is an amenable number.

74544536 is an abundant number, since it is smaller than the sum of its proper divisors (77933104).

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

74544536 is a wasteful number, since it uses less digits than its factorization.

74544536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847114 (or 847110 counting only the distinct ones).

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

The square root of 74544536 is about 8633.9177665762. The cubic root of 74544536 is about 420.8609249062.

The spelling of 74544536 in words is "seventy-four million, five hundred forty-four thousand, five hundred thirty-six".