7240512140 has 24 divisors (see below), whose sum is σ = 15243010272. Its totient is φ = 2888979200.

The previous prime is 7240512119. The next prime is 7240512163. The reversal of 7240512140 is 412150427.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 443384 + ... + 459423.

It is an arithmetic number, because the mean of its divisors is an integer number (635125428).

Almost surely, 2^7240512140 is an apocalyptic number.

It is an amenable number.

7240512140 is an abundant number, since it is smaller than the sum of its proper divisors (8002498132).

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

7240512140 is a wasteful number, since it uses less digits than its factorization.

7240512140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903217 (or 903215 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 7240512140 is about 85091.1989573540. The cubic root of 7240512140 is about 1934.5936681716.

Adding to 7240512140 its reverse (412150427), we get a palindrome (7652662567).

The spelling of 7240512140 in words is "seven billion, two hundred forty million, five hundred twelve thousand, one hundred forty".