3815378 has 48 divisors (see below), whose sum is σ = 7426944. Its totient is φ = 1436160.

The previous prime is 3815377. The next prime is 3815381. The reversal of 3815378 is 8735183.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

Its product of digits (20160) is a multiple of the sum of its prime divisors (90).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3815377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93038 + ... + 93078.

It is an arithmetic number, because the mean of its divisors is an integer number (154728).

Almost surely, 2^3815378 is an apocalyptic number.

3815378 is a deficient number, since it is larger than the sum of its proper divisors (3611566).

3815378 is a wasteful number, since it uses less digits than its factorization.

3815378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107 (or 90 counting only the distinct ones).

The product of its digits is 20160, while the sum is 35.

The square root of 3815378 is about 1953.2992602261. The cubic root of 3815378 is about 156.2592937405.

The spelling of 3815378 in words is "three million, eight hundred fifteen thousand, three hundred seventy-eight".