1071867356 has 72 divisors (see below), whose sum is σ = 2278666656. Its totient is φ = 439447680.

The previous prime is 1071867343. The next prime is 1071867371. The reversal of 1071867356 is 6537681701.

It is a super-2 number, since 2×1071867356² = 2297799257716861472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 441161 + ... + 443583.

It is an arithmetic number, because the mean of its divisors is an integer number (31648148).

Almost surely, 2^1071867356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1071867356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1139333328).

1071867356 is an abundant number, since it is smaller than the sum of its proper divisors (1206799300).

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

1071867356 is a wasteful number, since it uses less digits than its factorization.

1071867356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2539 (or 2530 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 1071867356 is about 32739.3853943534. The cubic root of 1071867356 is about 1023.4037755860.

The spelling of 1071867356 in words is "one billion, seventy-one million, eight hundred sixty-seven thousand, three hundred fifty-six".