7134240 has 96 divisors (see below), whose sum is σ = 22861440. Its totient is φ = 1869824.

The previous prime is 7134233. The next prime is 7134251. The reversal of 7134240 is 424317.

It is a Cunningham number, because it is equal to 2671²-1.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42637 + ... + 42803.

It is an arithmetic number, because the mean of its divisors is an integer number (238140).

Almost surely, 2^7134240 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 7134240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11430720).

7134240 is an abundant number, since it is smaller than the sum of its proper divisors (15727200).

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

7134240 is a wasteful number, since it uses less digits than its factorization.

7134240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274 (or 266 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 7134240 is about 2670.9998128042. Note that the first 3 decimals coincide. The cubic root of 7134240 is about 192.5082022704.

Adding to 7134240 its reverse (424317), we get a palindrome (7558557).

The spelling of 7134240 in words is "seven million, one hundred thirty-four thousand, two hundred forty".