74642311 has 8 divisors (see below), whose sum is σ = 75199248. Its totient is φ = 74088000.

The previous prime is 74642299. The next prime is 74642339. The reversal of 74642311 is 11324647.

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 74642311 - 2⁹ = 74641799 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74642311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74642341) 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, 137701 + ... + 138241.

It is an arithmetic number, because the mean of its divisors is an integer number (9399906).

Almost surely, 2^74642311 is an apocalyptic number.

74642311 is a deficient number, since it is larger than the sum of its proper divisors (556937).

74642311 is a wasteful number, since it uses less digits than its factorization.

74642311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313.

The product of its digits is 4032, while the sum is 28.

The square root of 74642311 is about 8639.5781725730. The cubic root of 74642311 is about 421.0448494036.

Adding to 74642311 its reverse (11324647), we get a palindrome (85966958).

The spelling of 74642311 in words is "seventy-four million, six hundred forty-two thousand, three hundred eleven".