74240519 has 2 divisors, whose sum is σ = 74240520. Its totient is φ = 74240518.

The previous prime is 74240501. The next prime is 74240521. The reversal of 74240519 is 91504247.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74240519 - 2¹² = 74236423 is a prime.

It is a super-2 number, since 2×74240519² = 11023309322778722, which contains 22 as substring.

Together with 74240521, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74240539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37120259 + 37120260.

It is an arithmetic number, because the mean of its divisors is an integer number (37120260).

Almost surely, 2^74240519 is an apocalyptic number.

74240519 is a deficient number, since it is larger than the sum of its proper divisors (1).

74240519 is an equidigital number, since it uses as much as digits as its factorization.

74240519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 74240519 is about 8616.2938088252. The cubic root of 74240519 is about 420.2880091837.

The spelling of 74240519 in words is "seventy-four million, two hundred forty thousand, five hundred nineteen".