2405342251 has 4 divisors (see below), whose sum is σ = 2590368592. Its totient is φ = 2220315912.

The previous prime is 2405342243. The next prime is 2405342293. The reversal of 2405342251 is 1522435042.

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

It is a cyclic number.

It is not a de Polignac number, because 2405342251 - 2³ = 2405342243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2405342201) 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, 92513151 + ... + 92513176.

It is an arithmetic number, because the mean of its divisors is an integer number (647592148).

Almost surely, 2^2405342251 is an apocalyptic number.

2405342251 is a deficient number, since it is larger than the sum of its proper divisors (185026341).

2405342251 is a wasteful number, since it uses less digits than its factorization.

2405342251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185026340.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 2405342251 is about 49044.2886685086. The cubic root of 2405342251 is about 1339.8585747751.

Adding to 2405342251 its reverse (1522435042), we get a palindrome (3927777293).

The spelling of 2405342251 in words is "two billion, four hundred five million, three hundred forty-two thousand, two hundred fifty-one".