74045140 has 96 divisors (see below), whose sum is σ = 176964480. Its totient is φ = 25837056.

The previous prime is 74045137. The next prime is 74045203. The reversal of 74045140 is 4154047.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 413571 + ... + 413749.

It is an arithmetic number, because the mean of its divisors is an integer number (1843380).

Almost surely, 2^74045140 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 74045140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88482240).

74045140 is an abundant number, since it is smaller than the sum of its proper divisors (102919340).

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

74045140 is a wasteful number, since it uses less digits than its factorization.

74045140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 74045140 is about 8604.9485762554. The cubic root of 74045140 is about 419.9189942035.

Adding to 74045140 its reverse (4154047), we get a palindrome (78199187).

It can be divided in two parts, 7404 and 5140, that added together give a square (12544 = 112²).

The spelling of 74045140 in words is "seventy-four million, forty-five thousand, one hundred forty".