75016240 has 80 divisors (see below), whose sum is σ = 198924768. Its totient is φ = 26062848.

The previous prime is 75016217. The next prime is 75016241. The reversal of 75016240 is 4261057.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (75016241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15559 + ... + 19801.

Almost surely, 2^75016240 is an apocalyptic number.

75016240 is the 7072-nd pentagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75016240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99462384).

75016240 is an abundant number, since it is smaller than the sum of its proper divisors (123908528).

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

75016240 is a wasteful number, since it uses less digits than its factorization.

75016240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4286 (or 4280 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 75016240 is about 8661.1916039307. The cubic root of 75016240 is about 421.7467690019.

Adding to 75016240 its reverse (4261057), we get a palindrome (79277297).

The spelling of 75016240 in words is "seventy-five million, sixteen thousand, two hundred forty".