1126784690 has 8 divisors (see below), whose sum is σ = 2028212460. Its totient is φ = 450713872.

The previous prime is 1126784669. The next prime is 1126784693. The reversal of 1126784690 is 964876211.

It can be written as a sum of positive squares in 2 ways, for example, as 1100846041 + 25938649 = 33179^2 + 5093^2 .

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

It is a super-2 number, since 2×1126784690² = 2539287475236792200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1126784693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56339225 + ... + 56339244.

Almost surely, 2^1126784690 is an apocalyptic number.

1126784690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1126784690 is a deficient number, since it is larger than the sum of its proper divisors (901427770).

1126784690 is a wasteful number, since it uses less digits than its factorization.

1126784690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112678476.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 1126784690 is about 33567.6137072625. The cubic root of 1126784690 is about 1040.5915920401.

The spelling of 1126784690 in words is "one billion, one hundred twenty-six million, seven hundred eighty-four thousand, six hundred ninety".