74512449 has 12 divisors (see below), whose sum is σ = 117413712. Its totient is φ = 45159000.

The previous prime is 74512423. The next prime is 74512463. The reversal of 74512449 is 94421547.

It is a happy number.

It is not a de Polignac number, because 74512449 - 2⁹ = 74511937 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (74512469) 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 11 ways as a sum of consecutive naturals, for example, 376227 + ... + 376424.

It is an arithmetic number, because the mean of its divisors is an integer number (9784476).

Almost surely, 2^74512449 is an apocalyptic number.

It is an amenable number.

74512449 is a deficient number, since it is larger than the sum of its proper divisors (42901263).

74512449 is a wasteful number, since it uses less digits than its factorization.

74512449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752668 (or 752665 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 74512449 is about 8632.0593718996. The cubic root of 74512449 is about 420.8005310206.

The spelling of 74512449 in words is "seventy-four million, five hundred twelve thousand, four hundred forty-nine".