74744 has 8 divisors (see below), whose sum is σ = 140160. Its totient is φ = 37368.

The previous prime is 74731. The next prime is 74747. The reversal of 74744 is 44747.

74744 is nontrivially palindromic in base 5.

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4664 + ... + 4679.

It is an arithmetic number, because the mean of its divisors is an integer number (17520).

2⁷⁴⁷⁴⁴ is an apocalyptic number.

It is an amenable number.

74744 is a deficient number, since it is larger than the sum of its proper divisors (65416).

74744 is a wasteful number, since it uses less digits than its factorization.

74744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9349 (or 9345 counting only the distinct ones).

The product of its digits is 3136, while the sum is 26.

The square root of 74744 is about 273.3934893153. The cubic root of 74744 is about 42.1235966214.

It can be divided in two parts, 74 and 744, that added together give a palindrome (818).

The spelling of 74744 in words is "seventy-four thousand, seven hundred forty-four", and thus it is an iban number.