74252520 has 96 divisors (see below), whose sum is σ = 242611200. Its totient is φ = 19694976.

The previous prime is 74252501. The next prime is 74252561. The reversal of 74252520 is 2525247.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85609 + ... + 86471.

It is an arithmetic number, because the mean of its divisors is an integer number (2527200).

Almost surely, 2^74252520 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 74252520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121305600).

74252520 is an abundant number, since it is smaller than the sum of its proper divisors (168358680).

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

74252520 is a wasteful number, since it uses less digits than its factorization.

74252520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119 (or 1112 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 74252520 is about 8616.9901937974. The cubic root of 74252520 is about 420.3106545203.

Adding to 74252520 its reverse (2525247), we get a palindrome (76777767).

The spelling of 74252520 in words is "seventy-four million, two hundred fifty-two thousand, five hundred twenty".