2420899823 has 4 divisors (see below), whose sum is σ = 2428083840. Its totient is φ = 2413715808.

The previous prime is 2420899813. The next prime is 2420899837. The reversal of 2420899823 is 3289980242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3289980242 = 2 ⋅1644990121.

It is a cyclic number.

It is not a de Polignac number, because 2420899823 - 2⁶ = 2420899759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2420899813) 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, 3591503 + ... + 3592176.

It is an arithmetic number, because the mean of its divisors is an integer number (607020960).

Almost surely, 2^2420899823 is an apocalyptic number.

2420899823 is a deficient number, since it is larger than the sum of its proper divisors (7184017).

2420899823 is an equidigital number, since it uses as much as digits as its factorization.

2420899823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7184016.

The product of its (nonzero) digits is 497664, while the sum is 47.

The square root of 2420899823 is about 49202.6404067912. The cubic root of 2420899823 is about 1342.7410704439.

The spelling of 2420899823 in words is "two billion, four hundred twenty million, eight hundred ninety-nine thousand, eight hundred twenty-three".