74981250 has 144 divisors (see below), whose sum is σ = 214486272. Its totient is φ = 18900000.

The previous prime is 74981177. The next prime is 74981279. The reversal of 74981250 is 5218947.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1743729 + ... + 1743771.

It is an arithmetic number, because the mean of its divisors is an integer number (1489488).

Almost surely, 2^74981250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74981250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107243136).

74981250 is an abundant number, since it is smaller than the sum of its proper divisors (139505022).

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

74981250 is a wasteful number, since it uses less digits than its factorization.

74981250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 74981250 is about 8659.1714384230. The cubic root of 74981250 is about 421.6811866942.

The spelling of 74981250 in words is "seventy-four million, nine hundred eighty-one thousand, two hundred fifty".