74274019 has 2 divisors, whose sum is σ = 74274020. Its totient is φ = 74274018.

The previous prime is 74273999. The next prime is 74274049. The reversal of 74274019 is 91047247.

It is a weak prime.

It is an emirp because it is prime and its reverse (91047247) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74274019 - 2¹¹ = 74271971 is a prime.

It is a super-2 number, since 2×74274019² = 11033259796824722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74274049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37137009 + 37137010.

It is an arithmetic number, because the mean of its divisors is an integer number (37137010).

Almost surely, 2^74274019 is an apocalyptic number.

74274019 is a deficient number, since it is larger than the sum of its proper divisors (1).

74274019 is an equidigital number, since it uses as much as digits as its factorization.

74274019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 74274019 is about 8618.2375808514. The cubic root of 74274019 is about 420.3512160474.

The spelling of 74274019 in words is "seventy-four million, two hundred seventy-four thousand, nineteen".