2390620993 has 4 divisors (see below), whose sum is σ = 2392331200. Its totient is φ = 2388910788.

The previous prime is 2390620987. The next prime is 2390621011. The reversal of 2390620993 is 3990260932.

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-2390620993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2390620913) 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, 853005 + ... + 855802.

It is an arithmetic number, because the mean of its divisors is an integer number (598082800).

Almost surely, 2^2390620993 is an apocalyptic number.

It is an amenable number.

2390620993 is a deficient number, since it is larger than the sum of its proper divisors (1710207).

2390620993 is a wasteful number, since it uses less digits than its factorization.

2390620993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1710206.

The product of its (nonzero) digits is 157464, while the sum is 43.

The square root of 2390620993 is about 48893.9770626199. The cubic root of 2390620993 is about 1337.1195632466.

The spelling of 2390620993 in words is "two billion, three hundred ninety million, six hundred twenty thousand, nine hundred ninety-three".