2340798581 has 4 divisors (see below), whose sum is σ = 2553598464. Its totient is φ = 2127998700.

The previous prime is 2340798571. The next prime is 2340798589. The reversal of 2340798581 is 1858970432.

It is a happy number.

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 2340798581 - 2⁶ = 2340798517 is a prime.

It is a super-2 number, since 2×2340798581² = 10958675993623227122, 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 (2340798589) 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, 106399925 + ... + 106399946.

It is an arithmetic number, because the mean of its divisors is an integer number (638399616).

Almost surely, 2^2340798581 is an apocalyptic number.

It is an amenable number.

2340798581 is a deficient number, since it is larger than the sum of its proper divisors (212799883).

2340798581 is a wasteful number, since it uses less digits than its factorization.

2340798581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212799882.

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 2340798581 is about 48381.8001008644. The cubic root of 2340798581 is about 1327.7654038125.

The spelling of 2340798581 in words is "two billion, three hundred forty million, seven hundred ninety-eight thousand, five hundred eighty-one".