4020490793 has 4 divisors (see below), whose sum is σ = 4385989968. Its totient is φ = 3654991620.

The previous prime is 4020490783. The next prime is 4020490847. The reversal of 4020490793 is 3970940204.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4020490793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4020490703) 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, 182749571 + ... + 182749592.

It is an arithmetic number, because the mean of its divisors is an integer number (1096497492).

Almost surely, 2^4020490793 is an apocalyptic number.

It is an amenable number.

4020490793 is a deficient number, since it is larger than the sum of its proper divisors (365499175).

4020490793 is a wasteful number, since it uses less digits than its factorization.

4020490793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365499174.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 4020490793 is about 63407.3402138901. The cubic root of 4020490793 is about 1590.1070287776.

The spelling of 4020490793 in words is "four billion, twenty million, four hundred ninety thousand, seven hundred ninety-three".