1090440699 has 12 divisors (see below), whose sum is σ = 1461330936. Its totient is φ = 723260928.

The previous prime is 1090440679. The next prime is 1090440731. The reversal of 1090440699 is 9960440901.

It is not a de Polignac number, because 1090440699 - 2⁸ = 1090440443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1090440699.

It is not an unprimeable number, because it can be changed into a prime (1090440679) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 872427 + ... + 873675.

It is an arithmetic number, because the mean of its divisors is an integer number (121777578).

Almost surely, 2^1090440699 is an apocalyptic number.

1090440699 is a deficient number, since it is larger than the sum of its proper divisors (370890237).

1090440699 is an frugal number, since it uses more digits than its factorization.

1090440699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2734 (or 1485 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 1090440699 is about 33021.8215578729. The cubic root of 1090440699 is about 1029.2811457598.

The spelling of 1090440699 in words is "one billion, ninety million, four hundred forty thousand, six hundred ninety-nine".