1081430208 has 42 divisors (see below), whose sum is σ = 3099726084. Its totient is φ = 360476544.

The previous prime is 1081430167. The next prime is 1081430209. The reversal of 1081430208 is 8020341801.

It is not an unprimeable number, because it can be changed into a prime (1081430209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 938166 + ... + 939317.

It is an arithmetic number, because the mean of its divisors is an integer number (73803002).

Almost surely, 2^1081430208 is an apocalyptic number.

1081430208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1081430208 is an abundant number, since it is smaller than the sum of its proper divisors (2018295876).

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

1081430208 is a wasteful number, since it uses less digits than its factorization.

1081430208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1877501 (or 1877488 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 1081430208 is about 32885.1061728558. The cubic root of 1081430208 is about 1026.4382610654.

The spelling of 1081430208 in words is "one billion, eighty-one million, four hundred thirty thousand, two hundred eight".