4020938193 has 4 divisors (see below), whose sum is σ = 5361250928. Its totient is φ = 2680625460.

The previous prime is 4020938161. The next prime is 4020938221. The reversal of 4020938193 is 3918390204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4020938193 - 2⁵ = 4020938161 is a prime.

It is a super-2 number, since 2×4020938193² = 32335887903852210498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4020938113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 670156363 + ... + 670156368.

It is an arithmetic number, because the mean of its divisors is an integer number (1340312732).

Almost surely, 2^4020938193 is an apocalyptic number.

It is an amenable number.

4020938193 is a deficient number, since it is larger than the sum of its proper divisors (1340312735).

4020938193 is a wasteful number, since it uses less digits than its factorization.

4020938193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340312734.

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

The square root of 4020938193 is about 63410.8680984577. The cubic root of 4020938193 is about 1590.1660089315.

The spelling of 4020938193 in words is "four billion, twenty million, nine hundred thirty-eight thousand, one hundred ninety-three".