1011780226 has 16 divisors (see below), whose sum is σ = 1541220408. Its totient is φ = 498096000.

The previous prime is 1011780193. The next prime is 1011780241. The reversal of 1011780226 is 6220871101.

It can be written as a sum of positive squares in 4 ways, for example, as 505575225 + 506205001 = 22485^2 + 22499^2 .

It is a super-2 number, since 2×1011780226² = 2047398451449222152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1011780194 and 1011780203.

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 7 ways as a sum of consecutive naturals, for example, 22726 + ... + 50398.

Almost surely, 2^1011780226 is an apocalyptic number.

1011780226 is a deficient number, since it is larger than the sum of its proper divisors (529440182).

1011780226 is a wasteful number, since it uses less digits than its factorization.

1011780226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27957.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 1011780226 is about 31808.4929853648. The cubic root of 1011780226 is about 1003.9114228242.

The spelling of 1011780226 in words is "one billion, eleven million, seven hundred eighty thousand, two hundred twenty-six".