3820415806 has 4 divisors (see below), whose sum is σ = 5730623712. Its totient is φ = 1910207902.

The previous prime is 3820415803. The next prime is 3820415813. The reversal of 3820415806 is 6085140283.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3820415803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 955103950 + ... + 955103953.

It is an arithmetic number, because the mean of its divisors is an integer number (1432655928).

Almost surely, 2^3820415806 is an apocalyptic number.

3820415806 is a deficient number, since it is larger than the sum of its proper divisors (1910207906).

3820415806 is a wasteful number, since it uses less digits than its factorization.

3820415806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910207905.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 3820415806 is about 61809.5122614634. The cubic root of 3820415806 is about 1563.2803815573.

The spelling of 3820415806 in words is "three billion, eight hundred twenty million, four hundred fifteen thousand, eight hundred six".