11400778 has 32 divisors (see below), whose sum is σ = 19284480. Its totient is φ = 5026560.

The previous prime is 11400769. The next prime is 11400791. The reversal of 11400778 is 87700411.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47583 + ... + 47821.

It is an arithmetic number, because the mean of its divisors is an integer number (602640).

Almost surely, 2^11400778 is an apocalyptic number.

11400778 is a deficient number, since it is larger than the sum of its proper divisors (7883702).

11400778 is a wasteful number, since it uses less digits than its factorization.

11400778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342.

The product of its (nonzero) digits is 1568, while the sum is 28.

The square root of 11400778 is about 3376.5038131179. The cubic root of 11400778 is about 225.0668311761.

The spelling of 11400778 in words is "eleven million, four hundred thousand, seven hundred seventy-eight".