7123248840 has 64 divisors (see below), whose sum is σ = 21445896960. Its totient is φ = 1892764160.

The previous prime is 7123248817. The next prime is 7123248887. The reversal of 7123248840 is 488423217.

It is a super-2 number, since 2×7123248840² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71904 + ... + 139343.

It is an arithmetic number, because the mean of its divisors is an integer number (335092140).

Almost surely, 2^7123248840 is an apocalyptic number.

It is an amenable number.

7123248840 is an abundant number, since it is smaller than the sum of its proper divisors (14322648120).

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

7123248840 is a wasteful number, since it uses less digits than its factorization.

7123248840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211542 (or 211538 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 7123248840 is about 84399.3414666252. The cubic root of 7123248840 is about 1924.0929073123.

The spelling of 7123248840 in words is "seven billion, one hundred twenty-three million, two hundred forty-eight thousand, eight hundred forty".