74413440 has 96 divisors (see below), whose sum is σ = 256978800. Its totient is φ = 19842048.

The previous prime is 74413439. The next prime is 74413457. The reversal of 74413440 is 4431447.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 700 + ... + 12219.

Almost surely, 2^74413440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74413440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128489400).

74413440 is an abundant number, since it is smaller than the sum of its proper divisors (182565360).

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

74413440 is a wasteful number, since it uses less digits than its factorization.

74413440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12944 (or 12929 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 74413440 is about 8626.3225073029. The cubic root of 74413440 is about 420.6140677412.

Adding to 74413440 its reverse (4431447), we get a palindrome (78844887).

The spelling of 74413440 in words is "seventy-four million, four hundred thirteen thousand, four hundred forty".