1073686356 has 18 divisors (see below), whose sum is σ = 2714040602. Its totient is φ = 357895440.

The previous prime is 1073686319. The next prime is 1073686373. The reversal of 1073686356 is 6536863701.

1073686356 is a `hidden beast` number, since 1 + 0 + 7 + 3 + 6 + 8 + 635 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 813960900 + 259725456 = 28530^2 + 16116^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14912275 + ... + 14912346.

Almost surely, 2^1073686356 is an apocalyptic number.

It is an amenable number.

1073686356 is an abundant number, since it is smaller than the sum of its proper divisors (1640354246).

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

1073686356 is a wasteful number, since it uses less digits than its factorization.

1073686356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29824631 (or 29824626 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 1073686356 is about 32767.1536145574. The cubic root of 1073686356 is about 1023.9823668940.

The spelling of 1073686356 in words is "one billion, seventy-three million, six hundred eighty-six thousand, three hundred fifty-six".