1081383804 has 96 divisors (see below), whose sum is σ = 3024786240. Its totient is φ = 332826624.

The previous prime is 1081383773. The next prime is 1081383811. The reversal of 1081383804 is 4083831801.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91752 + ... + 102864.

It is an arithmetic number, because the mean of its divisors is an integer number (31508190).

Almost surely, 2^1081383804 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 1081383804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1512393120).

1081383804 is an abundant number, since it is smaller than the sum of its proper divisors (1943402436).

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

1081383804 is a wasteful number, since it uses less digits than its factorization.

1081383804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11196 (or 11188 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 1081383804 is about 32884.4006179222. The cubic root of 1081383804 is about 1026.4235794207.

The spelling of 1081383804 in words is "one billion, eighty-one million, three hundred eighty-three thousand, eight hundred four".