74994240 has 112 divisors (see below), whose sum is σ = 239938560. Its totient is φ = 19845120.

The previous prime is 74994223. The next prime is 74994277. The reversal of 74994240 is 4249947.

It is a happy number.

It is a super-3 number, since 3×74994240³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183156 + ... + 183564.

Almost surely, 2^74994240 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 74994240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119969280).

74994240 is an abundant number, since it is smaller than the sum of its proper divisors (164944320).

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

74994240 is a wasteful number, since it uses less digits than its factorization.

74994240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620 (or 610 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 74994240 is about 8659.9214777041. The cubic root of 74994240 is about 421.7055364364.

The spelling of 74994240 in words is "seventy-four million, nine hundred ninety-four thousand, two hundred forty".