74459641 has 3 divisors (see below), whose sum is σ = 74468271. Its totient is φ = 74451012.

The previous prime is 74459639. The next prime is 74459653. The reversal of 74459641 is 14695447.

The square root of 74459641 is 8629.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 57320041 + 17139600 = 7571^2 + 4140^2 .

It is not a de Polignac number, because 74459641 - 2¹ = 74459639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74459594 and 74459603.

It is not an unprimeable number, because it can be changed into a prime (74459611) 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 2 ways as a sum of consecutive naturals, for example, 4315 + ... + 12943.

It is an arithmetic number, because the mean of its divisors is an integer number (24822757).

Almost surely, 2^74459641 is an apocalyptic number.

74459641 is the 8629-th square number.

74459641 is the 4315-th centered octagonal number.

It is an amenable number.

74459641 is a deficient number, since it is larger than the sum of its proper divisors (8630).

74459641 is an frugal number, since it uses more digits than its factorization.

74459641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17258 (or 8629 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The cubic root of 74459641 is about 420.7010984810.

The spelling of 74459641 in words is "seventy-four million, four hundred fifty-nine thousand, six hundred forty-one".