74082240 has 168 divisors, whose sum is σ = 263895840. Its totient is φ = 19052544.

The previous prime is 74082223. The next prime is 74082247. The reversal of 74082240 is 4228047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74082247) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83077 + ... + 83963.

Almost surely, 2^74082240 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 74082240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131947920).

74082240 is an abundant number, since it is smaller than the sum of its proper divisors (189813600).

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

74082240 is a wasteful number, since it uses less digits than its factorization.

74082240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939 (or 926 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 74082240 is about 8607.1040425918. The cubic root of 74082240 is about 419.9891153642.

The spelling of 74082240 in words is "seventy-four million, eighty-two thousand, two hundred forty".