74238843 has 16 divisors (see below), whose sum is σ = 113265920. Its totient is φ = 42369696.

The previous prime is 74238821. The next prime is 74238877. The reversal of 74238843 is 34883247.

It is not a de Polignac number, because 74238843 - 2⁸ = 74238587 is a prime.

It is a super-2 number, since 2×74238843² = 11022811619957298, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74238443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20796 + ... + 24102.

It is an arithmetic number, because the mean of its divisors is an integer number (7079120).

Almost surely, 2^74238843 is an apocalyptic number.

74238843 is a deficient number, since it is larger than the sum of its proper divisors (39027077).

74238843 is a wasteful number, since it uses less digits than its factorization.

74238843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4386.

The product of its digits is 129024, while the sum is 39.

The square root of 74238843 is about 8616.1965506829. The cubic root of 74238843 is about 420.2848464543.

The spelling of 74238843 in words is "seventy-four million, two hundred thirty-eight thousand, eight hundred forty-three".