2420345405 has 8 divisors (see below), whose sum is σ = 2905453152. Its totient is φ = 1935583888.

The previous prime is 2420345387. The next prime is 2420345443. The reversal of 2420345405 is 5045430242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2420345405 is a prime.

It is a super-2 number, since 2×2420345405² = 11716143759009228050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70919 + ... + 99348.

It is an arithmetic number, because the mean of its divisors is an integer number (363181644).

Almost surely, 2^2420345405 is an apocalyptic number.

It is an amenable number.

2420345405 is a deficient number, since it is larger than the sum of its proper divisors (485107747).

2420345405 is a wasteful number, since it uses less digits than its factorization.

2420345405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173115.

The product of its (nonzero) digits is 19200, while the sum is 29.

The square root of 2420345405 is about 49197.0060572795. The cubic root of 2420345405 is about 1342.6385608112.

Adding to 2420345405 its reverse (5045430242), we get a palindrome (7465775647).

The spelling of 2420345405 in words is "two billion, four hundred twenty million, three hundred forty-five thousand, four hundred five".