2102293439 has 4 divisors (see below), whose sum is σ = 2109883224. Its totient is φ = 2094703656.

The previous prime is 2102293397. The next prime is 2102293451. The reversal of 2102293439 is 9343922012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2102293439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2102293399 and 2102293408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102293339) 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, 3794477 + ... + 3795030.

It is an arithmetic number, because the mean of its divisors is an integer number (527470806).

Almost surely, 2^2102293439 is an apocalyptic number.

2102293439 is a deficient number, since it is larger than the sum of its proper divisors (7589785).

2102293439 is an equidigital number, since it uses as much as digits as its factorization.

2102293439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7589784.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 2102293439 is about 45850.7735921653. The cubic root of 2102293439 is about 1281.0451747802.

The spelling of 2102293439 in words is "two billion, one hundred two million, two hundred ninety-three thousand, four hundred thirty-nine".