1071686220 has 48 divisors (see below), whose sum is σ = 3273516288. Its totient is φ = 259802560.

The previous prime is 1071686197. The next prime is 1071686257. The reversal of 1071686220 is 226861701.

1071686220 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-2 number, since 2×1071686220² = 2297022708275776800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 811224 + ... + 812543.

It is an arithmetic number, because the mean of its divisors is an integer number (68198256).

Almost surely, 2^1071686220 is an apocalyptic number.

1071686220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1071686220 is an abundant number, since it is smaller than the sum of its proper divisors (2201830068).

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

1071686220 is a wasteful number, since it uses less digits than its factorization.

1071686220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1623790 (or 1623788 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 1071686220 is about 32736.6189457616. The cubic root of 1071686220 is about 1023.3461236422.

The spelling of 1071686220 in words is "one billion, seventy-one million, six hundred eighty-six thousand, two hundred twenty".