9424236840 has 64 divisors (see below), whose sum is σ = 29184744960. Its totient is φ = 2432060160.

The previous prime is 9424236839. The next prime is 9424236847. The reversal of 9424236840 is 486324249.

It is a junction number, because it is equal to n+sod(n) for n = 9424236792 and 9424236801.

It is not an unprimeable number, because it can be changed into a prime (9424236847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1262979 + ... + 1270418.

It is an arithmetic number, because the mean of its divisors is an integer number (456011640).

Almost surely, 2^9424236840 is an apocalyptic number.

It is an amenable number.

9424236840 is an abundant number, since it is smaller than the sum of its proper divisors (19760508120).

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

9424236840 is a wasteful number, since it uses less digits than its factorization.

9424236840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2533442 (or 2533438 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 42.

The square root of 9424236840 is about 97078.5086412024. The cubic root of 9424236840 is about 2112.2665939152.

The spelling of 9424236840 in words is "nine billion, four hundred twenty-four million, two hundred thirty-six thousand, eight hundred forty".