74238869 has 8 divisors (see below), whose sum is σ = 76952160. Its totient is φ = 71535856.

The previous prime is 74238821. The next prime is 74238877. The reversal of 74238869 is 96883247.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74238869 - 2²⁴ = 57461653 is a prime.

It is a super-2 number, since 2×74238869² = 11022819340798322, 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 (74238469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14054 + ... + 18600.

It is an arithmetic number, because the mean of its divisors is an integer number (9619020).

Almost surely, 2^74238869 is an apocalyptic number.

It is an amenable number.

74238869 is a deficient number, since it is larger than the sum of its proper divisors (2713291).

74238869 is a wasteful number, since it uses less digits than its factorization.

74238869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5139.

The product of its digits is 580608, while the sum is 47.

The square root of 74238869 is about 8616.1980594692. The cubic root of 74238869 is about 420.2848955185.

The spelling of 74238869 in words is "seventy-four million, two hundred thirty-eight thousand, eight hundred sixty-nine".