1081947496 has 32 divisors (see below), whose sum is σ = 2346402240. Its totient is φ = 458103168.

The previous prime is 1081947491. The next prime is 1081947497. The reversal of 1081947496 is 6947491801.

It is a super-2 number, since 2×1081947496² = 2341220768201340032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1081947491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111741 + ... + 121036.

It is an arithmetic number, because the mean of its divisors is an integer number (73325070).

Almost surely, 2^1081947496 is an apocalyptic number.

It is an amenable number.

1081947496 is an abundant number, since it is smaller than the sum of its proper divisors (1264454744).

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

1081947496 is a wasteful number, since it uses less digits than its factorization.

1081947496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232873 (or 232869 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 1081947496 is about 32892.9703128191. The cubic root of 1081947496 is about 1026.6018960844.

The spelling of 1081947496 in words is "one billion, eighty-one million, nine hundred forty-seven thousand, four hundred ninety-six".