74449453 has 4 divisors (see below), whose sum is σ = 80176348. Its totient is φ = 68722560.

The previous prime is 74449447. The next prime is 74449517. The reversal of 74449453 is 35494447.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48622729 + 25826724 = 6973^2 + 5082^2 .

It is a cyclic number.

It is not a de Polignac number, because 74449453 - 2⁵ = 74449421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74449433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2863428 + ... + 2863453.

It is an arithmetic number, because the mean of its divisors is an integer number (20044087).

Almost surely, 2^74449453 is an apocalyptic number.

It is an amenable number.

74449453 is a deficient number, since it is larger than the sum of its proper divisors (5726895).

74449453 is a wasteful number, since it uses less digits than its factorization.

74449453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5726894.

The product of its digits is 241920, while the sum is 40.

The square root of 74449453 is about 8628.4096448882. The cubic root of 74449453 is about 420.6819100176.

The spelling of 74449453 in words is "seventy-four million, four hundred forty-nine thousand, four hundred fifty-three".