2345209249 has 4 divisors (see below), whose sum is σ = 2355022080. Its totient is φ = 2335396420.

The previous prime is 2345209219. The next prime is 2345209253. The reversal of 2345209249 is 9429025432.

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 not a de Polignac number, because 2345209249 - 2⁹ = 2345208737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2345209219) 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, 4906057 + ... + 4906534.

It is an arithmetic number, because the mean of its divisors is an integer number (588755520).

Almost surely, 2^2345209249 is an apocalyptic number.

It is an amenable number.

2345209249 is a deficient number, since it is larger than the sum of its proper divisors (9812831).

2345209249 is an equidigital number, since it uses as much as digits as its factorization.

2345209249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9812830.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 2345209249 is about 48427.3605413304. The cubic root of 2345209249 is about 1328.5988313432.

The spelling of 2345209249 in words is "two billion, three hundred forty-five million, two hundred nine thousand, two hundred forty-nine".