1081404588 has 54 divisors (see below), whose sum is σ = 2776737292. Its totient is φ = 327318640.

The previous prime is 1081404563. The next prime is 1081404617. The reversal of 1081404588 is 8854041801.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1252645 + ... + 1253507.

Almost surely, 2^1081404588 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1081404588, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1388368646).

1081404588 is an abundant number, since it is smaller than the sum of its proper divisors (1695332704).

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

1081404588 is an equidigital number, since it uses as much as digits as its factorization.

1081404588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1755 (or 879 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 39.

The square root of 1081404588 is about 32884.7166325027. The cubic root of 1081404588 is about 1026.4301552700.

The spelling of 1081404588 in words is "one billion, eighty-one million, four hundred four thousand, five hundred eighty-eight".