74732231 has 8 divisors (see below), whose sum is σ = 85714464. Its totient is φ = 63826560.

The previous prime is 74732197. The next prime is 74732233. The reversal of 74732231 is 13223747.

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

It is not a de Polignac number, because 74732231 - 2⁶ = 74732167 is a prime.

It is a super-2 number, since 2×74732231² = 11169812700474722, 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 = 74732194 and 74732203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74732233) 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 7 ways as a sum of consecutive naturals, for example, 17030 + ... + 20963.

It is an arithmetic number, because the mean of its divisors is an integer number (10714308).

Almost surely, 2^74732231 is an apocalyptic number.

74732231 is a deficient number, since it is larger than the sum of its proper divisors (10982233).

74732231 is a wasteful number, since it uses less digits than its factorization.

74732231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38281.

The product of its digits is 7056, while the sum is 29.

The square root of 74732231 is about 8644.7805640166. The cubic root of 74732231 is about 421.2138561387.

Adding to 74732231 its reverse (13223747), we get a palindrome (87955978).

The spelling of 74732231 in words is "seventy-four million, seven hundred thirty-two thousand, two hundred thirty-one".