74842031 has 8 divisors (see below), whose sum is σ = 83030400. Its totient is φ = 66884440.

The previous prime is 74842021. The next prime is 74842039. The reversal of 74842031 is 13024847.

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 74842031 - 2¹⁰ = 74841007 is a prime.

It is a super-2 number, since 2×74842031² = 11202659208409922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74841985 and 74842003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74842039) 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, 57011 + ... + 58308.

It is an arithmetic number, because the mean of its divisors is an integer number (10378800).

Almost surely, 2^74842031 is an apocalyptic number.

74842031 is a deficient number, since it is larger than the sum of its proper divisors (8188369).

74842031 is a wasteful number, since it uses less digits than its factorization.

74842031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115389.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 74842031 is about 8651.1288858738. The cubic root of 74842031 is about 421.4200440567.

Adding to 74842031 its reverse (13024847), we get a palindrome (87866878).

The spelling of 74842031 in words is "seventy-four million, eight hundred forty-two thousand, thirty-one".