1081489700 has 36 divisors (see below), whose sum is σ = 2369640000. Its totient is φ = 428391840.

The previous prime is 1081489649. The next prime is 1081489711. The reversal of 1081489700 is 79841801.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42200 + ... + 62799.

Almost surely, 2^1081489700 is an apocalyptic number.

1081489700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1081489700 is an abundant number, since it is smaller than the sum of its proper divisors (1288150300).

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

1081489700 is a wasteful number, since it uses less digits than its factorization.

1081489700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105116 (or 105109 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 1081489700 is about 32886.0107036411. The cubic root of 1081489700 is about 1026.4570829751.

The spelling of 1081489700 in words is "one billion, eighty-one million, four hundred eighty-nine thousand, seven hundred".