74618449 has 2 divisors, whose sum is σ = 74618450. Its totient is φ = 74618448.

The previous prime is 74618443. The next prime is 74618473. The reversal of 74618449 is 94481647.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71520849 + 3097600 = 8457^2 + 1760^2 .

It is a cyclic number.

It is not a de Polignac number, because 74618449 - 2¹³ = 74610257 is a prime.

It is not a weakly prime, because it can be changed into another prime (74618443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37309224 + 37309225.

It is an arithmetic number, because the mean of its divisors is an integer number (37309225).

Almost surely, 2^74618449 is an apocalyptic number.

It is an amenable number.

74618449 is a deficient number, since it is larger than the sum of its proper divisors (1).

74618449 is an equidigital number, since it uses as much as digits as its factorization.

74618449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 43.

The square root of 74618449 is about 8638.1970919863. The cubic root of 74618449 is about 420.9999774319. Note that the first 4 decimals are identical.

The spelling of 74618449 in words is "seventy-four million, six hundred eighteen thousand, four hundred forty-nine".