74272049 has 2 divisors, whose sum is σ = 74272050. Its totient is φ = 74272048.

The previous prime is 74272021. The next prime is 74272109. The reversal of 74272049 is 94027247.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74218225 + 53824 = 8615^2 + 232^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74272049 is a prime.

It is not a weakly prime, because it can be changed into another prime (74272019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37136024 + 37136025.

It is an arithmetic number, because the mean of its divisors is an integer number (37136025).

Almost surely, 2^74272049 is an apocalyptic number.

It is an amenable number.

74272049 is a deficient number, since it is larger than the sum of its proper divisors (1).

74272049 is an equidigital number, since it uses as much as digits as its factorization.

74272049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 74272049 is about 8618.1232875841. The cubic root of 74272049 is about 420.3474996324.

The spelling of 74272049 in words is "seventy-four million, two hundred seventy-two thousand, forty-nine".