2428357889 has 4 divisors (see below), whose sum is σ = 2428468224. Its totient is φ = 2428247556.

The previous prime is 2428357879. The next prime is 2428357901. The reversal of 2428357889 is 9887538242.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2428357889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2428357859) 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, 9617 + ... + 70350.

It is an arithmetic number, because the mean of its divisors is an integer number (607117056).

Almost surely, 2^2428357889 is an apocalyptic number.

It is an amenable number.

2428357889 is a deficient number, since it is larger than the sum of its proper divisors (110335).

2428357889 is an equidigital number, since it uses as much as digits as its factorization.

2428357889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110334.

The product of its digits is 7741440, while the sum is 56.

The square root of 2428357889 is about 49278.3714118070. The cubic root of 2428357889 is about 1344.1185176997.

The spelling of 2428357889 in words is "two billion, four hundred twenty-eight million, three hundred fifty-seven thousand, eight hundred eighty-nine".