11013778 has 8 divisors (see below), whose sum is σ = 16599600. Its totient is φ = 5480580.

The previous prime is 11013767. The next prime is 11013791. The reversal of 11013778 is 87731011.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12628 + ... + 13471.

It is an arithmetic number, because the mean of its divisors is an integer number (2074950).

Almost surely, 2^11013778 is an apocalyptic number.

11013778 is a deficient number, since it is larger than the sum of its proper divisors (5585822).

11013778 is a wasteful number, since it uses less digits than its factorization.

11013778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26312.

The product of its (nonzero) digits is 1176, while the sum is 28.

The square root of 11013778 is about 3318.7012519960. The cubic root of 11013778 is about 222.4908248542.

Adding to 11013778 its reverse (87731011), we get a palindrome (98744789).

It can be divided in two parts, 110137 and 78, that added together give a triangular number (110215 = T₄₆₉).

The spelling of 11013778 in words is "eleven million, thirteen thousand, seven hundred seventy-eight".