1081893756 has 48 divisors (see below), whose sum is σ = 2567505920. Its totient is φ = 354499200.

The previous prime is 1081893739. The next prime is 1081893767. The reversal of 1081893756 is 6573981801.

It is a congruent number.

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, 482085 + ... + 484323.

Almost surely, 2^1081893756 is an apocalyptic number.

It is an amenable number.

1081893756 is an abundant number, since it is smaller than the sum of its proper divisors (1485612164).

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

1081893756 is a wasteful number, since it uses less digits than its factorization.

1081893756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2914 (or 2912 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 48.

The square root of 1081893756 is about 32892.1534108060. The cubic root of 1081893756 is about 1026.5848988026.

The spelling of 1081893756 in words is "one billion, eighty-one million, eight hundred ninety-three thousand, seven hundred fifty-six".