2288430381 has 4 divisors (see below), whose sum is σ = 3051240512. Its totient is φ = 1525620252.

The previous prime is 2288430371. The next prime is 2288430407. The reversal of 2288430381 is 1830348822.

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 not a de Polignac number, because 2288430381 - 2¹⁰ = 2288429357 is a prime.

It is a super-2 number, since 2×2288430381² = 10473827217367610322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2288430301) 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, 381405061 + ... + 381405066.

It is an arithmetic number, because the mean of its divisors is an integer number (762810128).

Almost surely, 2^2288430381 is an apocalyptic number.

It is an amenable number.

2288430381 is a deficient number, since it is larger than the sum of its proper divisors (762810131).

2288430381 is an equidigital number, since it uses as much as digits as its factorization.

2288430381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762810130.

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 2288430381 is about 47837.5415442725. The cubic root of 2288430381 is about 1317.7890714945.

The spelling of 2288430381 in words is "two billion, two hundred eighty-eight million, four hundred thirty thousand, three hundred eighty-one".