3793920018 has 16 divisors (see below), whose sum is σ = 8671817280. Its totient is φ = 1083977136.

The previous prime is 3793920017. The next prime is 3793920049. The reversal of 3793920018 is 8100293973.

It is a super-2 number, since 2×3793920018² = 28787658205962240648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 90331429 = 3793920018 / (3 + 7 + 9 + 3 + 9 + 2 + 0 + 0 + 1 + 8).

It is not an unprimeable number, because it can be changed into a prime (3793920017) 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, 45165673 + ... + 45165756.

It is an arithmetic number, because the mean of its divisors is an integer number (541988580).

Almost surely, 2^3793920018 is an apocalyptic number.

3793920018 is an abundant number, since it is smaller than the sum of its proper divisors (4877897262).

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

3793920018 is a wasteful number, since it uses less digits than its factorization.

3793920018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90331441.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 3793920018 is about 61594.8051218607. The cubic root of 3793920018 is about 1559.6580471728.

The spelling of 3793920018 in words is "three billion, seven hundred ninety-three million, nine hundred twenty thousand, eighteen".