75104240 has 20 divisors (see below), whose sum is σ = 174617544. Its totient is φ = 30041664.

The previous prime is 75104221. The next prime is 75104243. The reversal of 75104240 is 4240157.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75104243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 469322 + ... + 469481.

Almost surely, 2^75104240 is an apocalyptic number.

It is an amenable number.

75104240 is an abundant number, since it is smaller than the sum of its proper divisors (99513304).

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

75104240 is a wasteful number, since it uses less digits than its factorization.

75104240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938816 (or 938810 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 75104240 is about 8666.2702473440. The cubic root of 75104240 is about 421.9116186961.

Adding to 75104240 its reverse (4240157), we get a palindrome (79344397).

The spelling of 75104240 in words is "seventy-five million, one hundred four thousand, two hundred forty".