3845778 has 8 divisors (see below), whose sum is σ = 7691568. Its totient is φ = 1281924.

The previous prime is 3845753. The next prime is 3845837. The reversal of 3845778 is 8775483.

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

3845778 is an admirable number.

It is an Ulam number.

It is a Curzon number.

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, 320476 + ... + 320487.

It is an arithmetic number, because the mean of its divisors is an integer number (961446).

Almost surely, 2^3845778 is an apocalyptic number.

3845778 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3845778 is a wasteful number, since it uses less digits than its factorization.

3845778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640968.

The product of its digits is 188160, while the sum is 42.

The square root of 3845778 is about 1961.0655266972. The cubic root of 3845778 is about 156.6732083180.

The spelling of 3845778 in words is "three million, eight hundred forty-five thousand, seven hundred seventy-eight".