11745778 has 32 divisors (see below), whose sum is σ = 20321280. Its totient is φ = 5039760.

The previous prime is 11745757. The next prime is 11745809. The reversal of 11745778 is 87754711.

It is a self number, because there is not a number n which added to its sum of digits gives 11745778.

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, 70251 + ... + 70417.

It is an arithmetic number, because the mean of its divisors is an integer number (635040).

Almost surely, 2^11745778 is an apocalyptic number.

11745778 is a deficient number, since it is larger than the sum of its proper divisors (8575502).

11745778 is a wasteful number, since it uses less digits than its factorization.

11745778 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 digits is 54880, while the sum is 40.

The square root of 11745778 is about 3427.2114028755. The cubic root of 11745778 is about 227.3145645065.

The spelling of 11745778 in words is "eleven million, seven hundred forty-five thousand, seven hundred seventy-eight".