74274469 has 2 divisors, whose sum is σ = 74274470. Its totient is φ = 74274468.

The previous prime is 74274461. The next prime is 74274509. The reversal of 74274469 is 96447247.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48650625 + 25623844 = 6975^2 + 5062^2 .

It is a cyclic number.

It is not a de Polignac number, because 74274469 - 2³ = 74274461 is a prime.

It is a super-2 number, since 2×74274469² = 11033393490463922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74274461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37137234 + 37137235.

It is an arithmetic number, because the mean of its divisors is an integer number (37137235).

Almost surely, 2^74274469 is an apocalyptic number.

It is an amenable number.

74274469 is a deficient number, since it is larger than the sum of its proper divisors (1).

74274469 is an equidigital number, since it uses as much as digits as its factorization.

74274469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 338688, while the sum is 43.

The square root of 74274469 is about 8618.2636882379. The cubic root of 74274469 is about 420.3520649654.

The spelling of 74274469 in words is "seventy-four million, two hundred seventy-four thousand, four hundred sixty-nine".