1268024040 has 192 divisors, whose sum is σ = 4417545600. Its totient is φ = 314620416.

The previous prime is 1268024027. The next prime is 1268024041. The reversal of 1268024040 is 404208621.

It is a junction number, because it is equal to n+sod(n) for n = 1268023995 and 1268024013.

It is not an unprimeable number, because it can be changed into a prime (1268024041) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 304291 + ... + 308429.

It is an arithmetic number, because the mean of its divisors is an integer number (23008050).

Almost surely, 2^1268024040 is an apocalyptic number.

1268024040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1268024040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2208772800).

1268024040 is an abundant number, since it is smaller than the sum of its proper divisors (3149521560).

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

1268024040 is a wasteful number, since it uses less digits than its factorization.

1268024040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4216 (or 4209 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 1268024040 is about 35609.3251831595. The cubic root of 1268024040 is about 1082.3702059799.

The spelling of 1268024040 in words is "one billion, two hundred sixty-eight million, twenty-four thousand, forty".