1022178340 has 24 divisors (see below), whose sum is σ = 2259552960. Its totient is φ = 387351648.

The previous prime is 1022178319. The next prime is 1022178349. The reversal of 1022178340 is 438712201.

1022178340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1022178299 and 1022178308.

It is not an unprimeable number, because it can be changed into a prime (1022178349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1344592 + ... + 1345351.

It is an arithmetic number, because the mean of its divisors is an integer number (94148040).

Almost surely, 2^1022178340 is an apocalyptic number.

1022178340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022178340 is an abundant number, since it is smaller than the sum of its proper divisors (1237374620).

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

1022178340 is a wasteful number, since it uses less digits than its factorization.

1022178340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2689971 (or 2689969 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 1022178340 is about 31971.5238923640. The cubic root of 1022178340 is about 1007.3387904049.

The spelling of 1022178340 in words is "one billion, twenty-two million, one hundred seventy-eight thousand, three hundred forty".