11404778 has 32 divisors (see below), whose sum is σ = 21565440. Its totient is φ = 4394160.

The previous prime is 11404777. The next prime is 11404817. The reversal of 11404778 is 87740411.

11404778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11404778² = 260137922458568, which contains 22 as substring.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (11404777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15503 + ... + 16221.

It is an arithmetic number, because the mean of its divisors is an integer number (673920).

Almost surely, 2^11404778 is an apocalyptic number.

11404778 is a deficient number, since it is larger than the sum of its proper divisors (10160662).

11404778 is a wasteful number, since it uses less digits than its factorization.

11404778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842.

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 11404778 is about 3377.0960898381. The cubic root of 11404778 is about 225.0931499080.

The spelling of 11404778 in words is "eleven million, four hundred four thousand, seven hundred seventy-eight".