74282831 has 8 divisors (see below), whose sum is σ = 85969920. Its totient is φ = 62864568.

The previous prime is 74282807. The next prime is 74282869. The reversal of 74282831 is 13828247.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74282831 is a prime.

It is a super-2 number, since 2×74282831² = 11035877962749122, 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 = 74282791 and 74282800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74282881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66611 + ... + 67716.

It is an arithmetic number, because the mean of its divisors is an integer number (10746240).

Almost surely, 2^74282831 is an apocalyptic number.

74282831 is a deficient number, since it is larger than the sum of its proper divisors (11687089).

74282831 is a wasteful number, since it uses less digits than its factorization.

74282831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134413.

The product of its digits is 21504, while the sum is 35.

The square root of 74282831 is about 8618.7488071065. The cubic root of 74282831 is about 420.3678391254.

The spelling of 74282831 in words is "seventy-four million, two hundred eighty-two thousand, eight hundred thirty-one".