74274049 has 2 divisors, whose sum is σ = 74274050. Its totient is φ = 74274048.

The previous prime is 74274019. The next prime is 74274073. The reversal of 74274049 is 94047247.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74080449 + 193600 = 8607^2 + 440^2 .

It is a cyclic number.

It is not a de Polignac number, because 74274049 - 2⁷ = 74273921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74273999 and 74274017.

It is not a weakly prime, because it can be changed into another prime (74274019) 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 as a sum of consecutive naturals, namely, 37137024 + 37137025.

It is an arithmetic number, because the mean of its divisors is an integer number (37137025).

Almost surely, 2^74274049 is an apocalyptic number.

It is an amenable number.

74274049 is a deficient number, since it is larger than the sum of its proper divisors (1).

74274049 is an equidigital number, since it uses as much as digits as its factorization.

74274049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 74274049 is about 8618.2393213463. The cubic root of 74274049 is about 420.3512726420.

It can be divided in two parts, 7427 and 4049, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 74274049 in words is "seventy-four million, two hundred seventy-four thousand, forty-nine".