1090281816 has 64 divisors (see below), whose sum is σ = 3261535200. Its totient is φ = 335470464.

The previous prime is 1090281781. The next prime is 1090281839. The reversal of 1090281816 is 6181820901.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191331 + ... + 196946.

Almost surely, 2^1090281816 is an apocalyptic number.

It is an amenable number.

1090281816 is an abundant number, since it is smaller than the sum of its proper divisors (2171253384).

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

1090281816 is a wasteful number, since it uses less digits than its factorization.

1090281816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388305 (or 388295 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 36.

The square root of 1090281816 is about 33019.4157428626. The cubic root of 1090281816 is about 1029.2311527555.

The spelling of 1090281816 in words is "one billion, ninety million, two hundred eighty-one thousand, eight hundred sixteen".