2018490393 has 32 divisors (see below), whose sum is σ = 3019887360. Its totient is φ = 1192970240.

The previous prime is 2018490389. The next prime is 2018490407. The reversal of 2018490393 is 3930948102.

2018490393 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2018490393 - 2² = 2018490389 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2018490323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43996 + ... + 77282.

It is an arithmetic number, because the mean of its divisors is an integer number (94371480).

Almost surely, 2^2018490393 is an apocalyptic number.

It is an amenable number.

2018490393 is a deficient number, since it is larger than the sum of its proper divisors (1001396967).

2018490393 is a wasteful number, since it uses less digits than its factorization.

2018490393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33377.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 2018490393 is about 44927.6128121671. The cubic root of 2018490393 is about 1263.7918846409.

The spelling of 2018490393 in words is "two billion, eighteen million, four hundred ninety thousand, three hundred ninety-three".