74245120 has 88 divisors (see below), whose sum is σ = 188798904. Its totient is φ = 27918336.

The previous prime is 74245097. The next prime is 74245121. The reversal of 74245120 is 2154247.

It can be written as a sum of positive squares in 4 ways, for example, as 2876416 + 71368704 = 1696^2 + 8448^2 .

It is not an unprimeable number, because it can be changed into a prime (74245121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86614 + ... + 87466.

Almost surely, 2^74245120 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 74245120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94399452).

74245120 is an abundant number, since it is smaller than the sum of its proper divisors (114553784).

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

74245120 is a wasteful number, since it uses less digits than its factorization.

74245120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895 (or 877 counting only the distinct ones).

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

The square root of 74245120 is about 8616.5607988338. The cubic root of 74245120 is about 420.2966913481.

Adding to 74245120 its reverse (2154247), we get a palindrome (76399367).

It can be divided in two parts, 7424 and 5120, that added together give a square (12544 = 112²).

The spelling of 74245120 in words is "seventy-four million, two hundred forty-five thousand, one hundred twenty".