74269399 has 4 divisors (see below), whose sum is σ = 74400040. Its totient is φ = 74138760.

The previous prime is 74269381. The next prime is 74269453. The reversal of 74269399 is 99396247.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99396247 = 349 ⋅284803.

It is a cyclic number.

It is not a de Polignac number, because 74269399 - 2²³ = 65880791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74269339) 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, 64464 + ... + 65605.

It is an arithmetic number, because the mean of its divisors is an integer number (18600010).

Almost surely, 2^74269399 is an apocalyptic number.

74269399 is a deficient number, since it is larger than the sum of its proper divisors (130641).

74269399 is a wasteful number, since it uses less digits than its factorization.

74269399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130640.

The product of its digits is 734832, while the sum is 49.

The square root of 74269399 is about 8617.9695404428. The cubic root of 74269399 is about 420.3425002904.

The spelling of 74269399 in words is "seventy-four million, two hundred sixty-nine thousand, three hundred ninety-nine".