1071745220 has 48 divisors (see below), whose sum is σ = 2770053888. Its totient is φ = 339189120.

The previous prime is 1071745211. The next prime is 1071745243. The reversal of 1071745220 is 225471701.

1071745220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×1071745220³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 292616 + ... + 296255.

It is an arithmetic number, because the mean of its divisors is an integer number (57709456).

Almost surely, 2^1071745220 is an apocalyptic number.

1071745220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1071745220 is an abundant number, since it is smaller than the sum of its proper divisors (1698308668).

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

1071745220 is a wasteful number, since it uses less digits than its factorization.

1071745220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588900 (or 588898 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 1071745220 is about 32737.5200649041. The cubic root of 1071745220 is about 1023.3649028683.

The spelling of 1071745220 in words is "one billion, seventy-one million, seven hundred forty-five thousand, two hundred twenty".