7504207540 has 48 divisors (see below), whose sum is σ = 16194931200. Its totient is φ = 2918719872.

The previous prime is 7504207519. The next prime is 7504207547. The reversal of 7504207540 is 457024057.

It is a junction number, because it is equal to n+sod(n) for n = 7504207496 and 7504207505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7504207547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2232381 + ... + 2235739.

It is an arithmetic number, because the mean of its divisors is an integer number (337394400).

Almost surely, 2^7504207540 is an apocalyptic number.

It is an amenable number.

7504207540 is an abundant number, since it is smaller than the sum of its proper divisors (8690723660).

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

7504207540 is a wasteful number, since it uses less digits than its factorization.

7504207540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6424 (or 6422 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 34.

The square root of 7504207540 is about 86626.8292158959. The cubic root of 7504207540 is about 1957.7997957593.

The spelling of 7504207540 in words is "seven billion, five hundred four million, two hundred seven thousand, five hundred forty".