1071598356 has 96 divisors (see below), whose sum is σ = 2891750400. Its totient is φ = 342891360.

The previous prime is 1071598351. The next prime is 1071598379. The reversal of 1071598356 is 6538951701.

It is a happy number.

1071598356 is a `hidden beast` number, since 1 + 0 + 7 + 1 + 598 + 3 + 56 = 666.

It is a super-2 number, since 2×1071598356² = 2296646073163805472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1071598351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 272041 + ... + 275951.

It is an arithmetic number, because the mean of its divisors is an integer number (30122400).

Almost surely, 2^1071598356 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 1071598356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1445875200).

1071598356 is an abundant number, since it is smaller than the sum of its proper divisors (1820152044).

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

1071598356 is a wasteful number, since it uses less digits than its factorization.

1071598356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4026 (or 4018 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The square root of 1071598356 is about 32735.2769348298. The cubic root of 1071598356 is about 1023.3181559593.

The spelling of 1071598356 in words is "one billion, seventy-one million, five hundred ninety-eight thousand, three hundred fifty-six".