2420397893 has 4 divisors (see below), whose sum is σ = 2525632608. Its totient is φ = 2315163180.

The previous prime is 2420397857. The next prime is 2420397901. The reversal of 2420397893 is 3987930242.

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 2420397893 - 2⁶ = 2420397829 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 (2420397823) 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, 52617323 + ... + 52617368.

It is an arithmetic number, because the mean of its divisors is an integer number (631408152).

Almost surely, 2^2420397893 is an apocalyptic number.

2420397893 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2420397893 is a deficient number, since it is larger than the sum of its proper divisors (105234715).

2420397893 is a wasteful number, since it uses less digits than its factorization.

2420397893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105234714.

The product of its (nonzero) digits is 653184, while the sum is 47.

The square root of 2420397893 is about 49197.5395014832. The cubic root of 2420397893 is about 1342.6482662997.

The spelling of 2420397893 in words is "two billion, four hundred twenty million, three hundred ninety-seven thousand, eight hundred ninety-three".