1081885392 has 120 divisors (see below), whose sum is σ = 3476555264. Its totient is φ = 307660032.

The previous prime is 1081885373. The next prime is 1081885411. The reversal of 1081885392 is 2935881801.

It is a happy number.

1081885392 is a `hidden beast` number, since 108 + 1 + 8 + 8 + 539 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (1081885373) and next prime (1081885411).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 222378 + ... + 227190.

Almost surely, 2^1081885392 is an apocalyptic number.

1081885392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1081885392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1738277632).

1081885392 is an abundant number, since it is smaller than the sum of its proper divisors (2394669872).

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

1081885392 is a wasteful number, since it uses less digits than its factorization.

1081885392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5057 (or 5048 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The square root of 1081885392 is about 32892.0262677750. The cubic root of 1081885392 is about 1026.5822533246.

The spelling of 1081885392 in words is "one billion, eighty-one million, eight hundred eighty-five thousand, three hundred ninety-two".