3820393730 has 8 divisors (see below), whose sum is σ = 6876708732. Its totient is φ = 1528157488.

The previous prime is 3820393723. The next prime is 3820393739. The reversal of 3820393730 is 373930283.

It can be written as a sum of positive squares in 2 ways, for example, as 3816397729 + 3996001 = 61777^2 + 1999^2 .

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

It is not an unprimeable number, because it can be changed into a prime (3820393739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191019677 + ... + 191019696.

Almost surely, 2^3820393730 is an apocalyptic number.

3820393730 is a deficient number, since it is larger than the sum of its proper divisors (3056315002).

3820393730 is a wasteful number, since it uses less digits than its factorization.

3820393730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382039380.

The product of its (nonzero) digits is 81648, while the sum is 38.

The square root of 3820393730 is about 61809.3336802784. Note that the first 3 decimals coincide. The cubic root of 3820393730 is about 1563.2773704501.

The spelling of 3820393730 in words is "three billion, eight hundred twenty million, three hundred ninety-three thousand, seven hundred thirty".