1081489630 has 32 divisors (see below), whose sum is σ = 2102454144. Its totient is φ = 398171136.

The previous prime is 1081489621. The next prime is 1081489649. The reversal of 1081489630 is 369841801.

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, 34107 + ... + 57673.

It is an arithmetic number, because the mean of its divisors is an integer number (65701692).

Almost surely, 2^1081489630 is an apocalyptic number.

1081489630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1081489630 is a deficient number, since it is larger than the sum of its proper divisors (1020964514).

1081489630 is a wasteful number, since it uses less digits than its factorization.

1081489630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23940.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 1081489630 is about 32886.0096393588. The cubic root of 1081489630 is about 1026.4570608291.

The spelling of 1081489630 in words is "one billion, eighty-one million, four hundred eighty-nine thousand, six hundred thirty".