1083449840 has 40 divisors (see below), whose sum is σ = 2748025008. Its totient is φ = 393981440.

The previous prime is 1083449837. The next prime is 1083449869. The reversal of 1083449840 is 489443801.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 614717 + ... + 616476.

Almost surely, 2^1083449840 is an apocalyptic number.

1083449840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1083449840 is an abundant number, since it is smaller than the sum of its proper divisors (1664575168).

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

1083449840 is a wasteful number, since it uses less digits than its factorization.

1083449840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231217 (or 1231211 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 1083449840 is about 32915.7992459548. The cubic root of 1083449840 is about 1027.0768408466.

The spelling of 1083449840 in words is "one billion, eighty-three million, four hundred forty-nine thousand, eight hundred forty".