74750449 has 4 divisors (see below), whose sum is σ = 74767780. Its totient is φ = 74733120.

The previous prime is 74750443. The next prime is 74750497. The reversal of 74750449 is 94405747.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 94405747 = 67 ⋅1409041.

It can be written as a sum of positive squares in 2 ways, for example, as 37601424 + 37149025 = 6132^2 + 6095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74750449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74750443) 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, 3469 + ... + 12709.

It is an arithmetic number, because the mean of its divisors is an integer number (18691945).

Almost surely, 2^74750449 is an apocalyptic number.

It is an amenable number.

74750449 is a deficient number, since it is larger than the sum of its proper divisors (17331).

74750449 is an equidigital number, since it uses as much as digits as its factorization.

74750449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17330.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 74750449 is about 8645.8341991967. The cubic root of 74750449 is about 421.2480807762.

The spelling of 74750449 in words is "seventy-four million, seven hundred fifty thousand, four hundred forty-nine".