1090816442 has 8 divisors (see below), whose sum is σ = 1636670100. Its totient is φ = 545259744.

The previous prime is 1090816427. The next prime is 1090816451. The reversal of 1090816442 is 2446180901.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1084319041 + 6497401 = 32929^2 + 2549^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 64817 + ... + 79892.

Almost surely, 2^1090816442 is an apocalyptic number.

1090816442 is a deficient number, since it is larger than the sum of its proper divisors (545853658).

1090816442 is a wasteful number, since it uses less digits than its factorization.

1090816442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148480.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 1090816442 is about 33027.5103814986. The cubic root of 1090816442 is about 1029.3993550834.

The spelling of 1090816442 in words is "one billion, ninety million, eight hundred sixteen thousand, four hundred forty-two".