3823720090 has 16 divisors (see below), whose sum is σ = 6888486888. Its totient is φ = 1528201216.

The previous prime is 3823720081. The next prime is 3823720091. The reversal of 3823720090 is 900273283.

It can be written as a sum of positive squares in 4 ways, for example, as 2619699489 + 1204020601 = 51183^2 + 34699^2 .

It is not an unprimeable number, because it can be changed into a prime (3823720091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148327 + ... + 172186.

Almost surely, 2^3823720090 is an apocalyptic number.

3823720090 is a deficient number, since it is larger than the sum of its proper divisors (3064766798).

3823720090 is a wasteful number, since it uses less digits than its factorization.

3823720090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321713.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 3823720090 is about 61836.2360594498. The cubic root of 3823720090 is about 1563.7309462869.

The spelling of 3823720090 in words is "three billion, eight hundred twenty-three million, seven hundred twenty thousand, ninety".