74244330 has 64 divisors (see below), whose sum is σ = 200430720. Its totient is φ = 19554048.

The previous prime is 74244329. The next prime is 74244337. The reversal of 74244330 is 3344247.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 74244294 and 74244303.

It is not an unprimeable number, because it can be changed into a prime (74244337) 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 31 ways as a sum of consecutive naturals, for example, 20754 + ... + 24066.

It is an arithmetic number, because the mean of its divisors is an integer number (3131730).

Almost surely, 2^74244330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74244330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100215360).

74244330 is an abundant number, since it is smaller than the sum of its proper divisors (126186390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74244330 is a wasteful number, since it uses less digits than its factorization.

74244330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3412 (or 3406 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 27.

The square root of 74244330 is about 8616.5149567560. The cubic root of 74244330 is about 420.2952006303.

Adding to 74244330 its reverse (3344247), we get a palindrome (77588577).

The spelling of 74244330 in words is "seventy-four million, two hundred forty-four thousand, three hundred thirty".