74269839 has 12 divisors (see below), whose sum is σ = 115194264. Its totient is φ = 42439824.

The previous prime is 74269817. The next prime is 74269847. The reversal of 74269839 is 93896247.

It is not a de Polignac number, because 74269839 - 2⁵ = 74269807 is a prime.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 252472 + ... + 252765.

It is an arithmetic number, because the mean of its divisors is an integer number (9599522).

Almost surely, 2^74269839 is an apocalyptic number.

74269839 is a deficient number, since it is larger than the sum of its proper divisors (40924425).

74269839 is a wasteful number, since it uses less digits than its factorization.

74269839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505254 (or 505247 counting only the distinct ones).

The product of its digits is 653184, while the sum is 48.

The square root of 74269839 is about 8617.9950684599. The cubic root of 74269839 is about 420.3433303781.

The spelling of 74269839 in words is "seventy-four million, two hundred sixty-nine thousand, eight hundred thirty-nine".