74409469 has 4 divisors (see below), whose sum is σ = 74473344. Its totient is φ = 74345596.

The previous prime is 74409457. The next prime is 74409487. The reversal of 74409469 is 96490447.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 74409469 - 2¹³ = 74401277 is a prime.

It is a super-2 number, since 2×74409469² = 11073538153723922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74409409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30157 + ... + 32530.

It is an arithmetic number, because the mean of its divisors is an integer number (18618336).

Almost surely, 2^74409469 is an apocalyptic number.

It is an amenable number.

74409469 is a deficient number, since it is larger than the sum of its proper divisors (63875).

74409469 is a wasteful number, since it uses less digits than its factorization.

74409469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63874.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 74409469 is about 8626.0923366261. The cubic root of 74409469 is about 420.6065857229.

The spelling of 74409469 in words is "seventy-four million, four hundred nine thousand, four hundred sixty-nine".